Posts Tagged ‘gilding’

WINE-GLASS, BLUE GLASS CASED OVER
GLASS, with ACID-ETCHED DECORATION
Benjamin Richardson, England, 1857
I It. 143 mm (563 in.)
Acid Etching: Although acid-etched glasses
arc known to exist from the 17th century,
the process was not generally used in glass-
making until the 19th century, with the
discovery of hydrofluoric acid. Heinrich
Schwanhardt (d.1693), son of the Nurem-
berg engraver Georg Schwanhardt, is
recorded to have engraved glasses with
acid, one example attributed to him being
dated 1686. The technique can be used
either to cut through one layer of glass to
another, as in the glass illustrated, or to
provide a single-layered glass with a matt
finish. An acid-resist such as wax paraffin
covers the parts that are not to be affected,
the pattern having been cut through the
resist. The surface of the glass is then
treated in an acid bath (such as a mixture
of 100 parts of water, 10 of potassium
fluoride and t part hydrochloric acid).
Benjamin Richardson of the Richardson
firm of Stourbridge took out a patent to
etch glasses in 1857.
VASE WITH ACID-ETCHED DECORATION
J. & J. Northwood, England, r.1878.
Ht. 216 mm (85 in.)
It was only in the 19th and 20th centuries
that acid-etching became at all an accepted
mode of decoration. In England it is
known that the Dudley firm of Thomas
Hawkes used the technique in the 1830’s.
Besides flat glass objects, wine-glasses,
bottles and vases were being acid-etched
by the 1840’s. John Northwood and T.
Guest were involved in the Richardson
experiments with acid-etching, and in the
186o’s established themselves as individual
firms specialising in etching. They were
known as J. 8c J. Northwood, and Guest
Brothers respectively, and produced a
quantity of etched work in the later 1860’s
and 1870V The skill and delicacy of the
etching they achieved can be seen on the
vase illustrated, made at the J. 8c J.
Northwood works and shown at the Paris
Exhibition of 1878. Acid-etching was by
no means a technique confined to England,
however.
The Techniques of’Taking Away
As Maurice Marinoi of Trance grew to
understand the nature and working of
glass, he experimented with its ornamen-
tation. In 1922 he began using the
technique of acid-etching in a manner
distinctly his own. The process had been
used by French glass-makers since the
mid-19th century. F.mile Galle, comment-
ing on the technique, had said that it would
not do for delicate work, but ‘it cuts into
certain glasses in a manner of its own’. He
used it in his factory from 1890 onwards,
and the Daum factory had also used it to
some extent. Marinot took up acid-etching
because it suited his purpose better than
any other decorative technique. When he
employed acid-etching he used the massi v e
forms he had always favoured, in trans-
parent, occasionally tinted, glass. The
etched designs cut deeply into the surface,
giving an almost sculptural look to the
glass. The whole surface of the glass was
subjected to the treatment, with the most
varied results.
Acid-etching has been used to give a matt
surface to the colourless glass vase illus-
trated. This slender vase has a round foot,
w ith a long stem widening slightly towards
the bowl, which is of an exaggerated tulip
shape. It is just one example of the beaut]
of modern Swedish glass. Even such an
aesthetically difficult technique as etching
has been triumphantly used to give .1
beautiful all-over textural and eye-catch-
ing finish. It has been said that ‘Sweden’s
great contribution to modern design was
to transform Functionalism from an in-
tellectual theory into a practical instru-
ment for better living’ (Polak, 1962). This
was eminently shown in her glass-making;
but besides qualities like fitness for prac-
tical purpose, toughness in wear and
cheapness of production, the general aim
from the beginning was to create objects
of beauty. The Swedes succeeded in their
glassware perhaps more than in any other
branch of modern design.
ENGRAVED AND SAND-BLASTED VASE
Hy Sverre FtTterscn, Hadeland, Norway, 1038
Sand-blasling: In the process of sand-
blasting a stream of sand, crushed flint or
powdered iron is directed on to the surface
of the glass in a jet of air. The parts of the
glass to be left plain are covered with a
stencil plate of steel, or an elastic varnish
or rubber solution painted on to form a
protective shield. The type of finish is
varied by altering the size of the nozzle, or
the abrasive, or the air pressure. The
technique has been in use since 1870,
though it has rarely been applied to vessel
glass, except for lettering on mass-pro-
duced items, and is mainly used on glass
panels for decorative architectural use.
One of the more successful uses of sand-
blasting on vessel glass was by Sverre
Pettersen of Norway (1884-1959), who
was engaged as designer to Hadelands
Cilasswerk in 1928—at that time the only
factory for table glass and decorative glass
in Norway. During the ‘thirties he pro-
duced some very interesting pieces with
sand-blasted decoration.
PLATE WITH SAND-BLASTED ENGRAVING
By I adislav Oliva, Czechoslovakia, 1959
Diam. 362 mm (1425 in,)
Such are the difficulties attached to using
sand-blasting for anything but the heaviest
surface decoration that only very occasion-
ally are satisfying examples of the tech-
nique to be found. One of the exceptions is
this plate, designed and executed by
Ladislav Oliva (b. 1933) in Czechoslovakia.
The plate, in clear colourless lead crystal
glass, has a slightly raised rim, and the
grille-like decoration is in the form of cuts
about to mm (4/ioths in.) deep. Oliva
manages through this technique to give
the glass a new and exciting appearance.
His decorative themes always seem to
result from the natural lights of the heavy
glass mass. The matt finish that sand-
blasting imports to the glass can be very
pleasant to the touch, although sometimes
it can give a fairly rough effect.
The  century has been called the ‘golden
age of glass”, for it added many new tech-
niques to the glass-maker’s repertoire. This
sudden burst of activity can be put down to
many factors, including ‘the industrial revo-
lution, the relaxation of government controls
on the industry (specifically in England) and
a pride of craftsmanship born of freedom’
I Revi, i<)5g). Not since the Italian Renais-
sance had there been such an interest in new
glass-making ideas. In America the larger
firms hired scientists to discover new methods
of colouring glass, one of the best-known
being the Englishman Joseph I^ocke. In
Britain and on the Continent there was keen
rivalry in producing new types of art glass
for a highly competitive market. Demand
rem lied its zenith towards the end of the
I ii torian era. Since then, though new
techniques have still greatly interested glass-
makers, the art glass produced has reflected
the inherent qualities of the material, rather
than added decorative effects.
Pearl Satinglass, also known as Pearl Ware,
Mother-of-Pearl Satinglass and Verre de
Soie, can be found in a variety of patterns
and colours, but basically it shows the
technique of keeping a symmetrical or
controlled pattern of air traps within the
body of a vessel. The vase illustrated shows
a typical example in the so-called hobnail
pattern. Benjamin Richardson of England
filed the first patent for this technique in
1857. His method was quite simple. A
gather of glass was blown into a mould
which carried the pattern in projected
form. The piece, thus indented, was
covered by a further gather of glass, which
caused air traps to form over the pattern.
Another method current in England and
America in the late 19th century was to line
a heated mould with glass tubes, either
clear and colourless or coloured, and to
blow a bubble of glass into this mould.
BOWL OPAQUE IVORI
COLOURED GLASS CASED WITH A P.AIJi RUBY OUTER
LAYER
Stevens & Williams, England, about 1885
lit. 140 mm (55 in.)
The tubes would thus be caught up and
marvered into the body of the glass. By
twisting the paraison the worker produced
articles of glass with pearly swirled stripes
on the outer surface. This method was
probably used to produce the body of the
bowl illustrated, which has been further
worked to form a frilly rim, and has the
heavy applied decoration current around
1885, Patents to produce Pearl Satinglass
were filed by firms in New York in 1881
and France in 1885. The Mt. Washington
Glass Company of the U.S.A. filed patents
in 1886, which also suggested using heat-
sensitive metal to colour the glass, and
giving the article a lustreless finish by
using an acid bath, or by sand-blasting.
The Phoenix Glass Company of Pennsyl-
vania filed patents in 1886, 1887 and 1888;
the final patent described the use of two
moulds, one to pattern the inner wall of
the article, the other to be used after the
outer casing of glass had been applied.
FAIRY LAMP IN PEARL SATINGLASS, RAINBOW STRIPED
IN BLUE, ROSE, YELLOW AND APRICOT
About 1885. lit. 152 mm (6 in.)
The finished product made by the tech-
nique last described displayed a criss-
crossed network of pearly-indented lines
contained in the body of the article.
William Webb Boulton, who had the
Audnam Bank glass-house in England,
filed a patent for Pearl Satin Glass in 1885.
Other English glass-houses manufactured
this type of glass, notably Stevens &
Williams of Brierley Hill, who called it
‘Verre de Soie\ Much of the Pearl Satin-
glass produced in the late 19th century
came from Bohemian and French factories.
These cheaper wares, supplied by factories
at Steinschonau and Altrohlau, Bohemia,
effectively ruined the market for the finer
wares of England and America. Many
different means were used to colour Pearl
Satinglass. The rainbow striping suggested
in this fairy lamp was produced by laying
coloured rods of glass on the body of the
article before it was fully formed.
VASE IN PEARL SATINGLASS
Thomas Webb & Sons, England, probably early
iSoo’s. Hi. 260 mm (1025 in.)
The technical development of trapping air
in moulded recesses between an opaque-
glass body and a tinted layer was further
refined by Thomas Webb & Sons of
England. In the magnificent example
illustrated the vase has a diamond air-lock
pattern between opaque and translucent
layers of glass, but has been covered by an
outer layer etched away to form a floral
pattern in relief; the whole article has a
satin finish. In 1889 Thomas Webb
patented this process for manufacturing
cameo relief designs on articles of Pearl
Satin Ware. After the diamond air lock
pattern had been produced in the usual
way, an extra coating of opaque white or
coloured glass was applied. The design
was painted on to this coating with acid-
resisting inks; when the article was plunged
into an acid bath, the acid dissolved away
all glass not protected by the resist. The
glass-maker had to be extremely careful
not ti) leave the object in the acid too long,
lest the acid reached the air traps.
FOOTED VASE, WITH CORAIE1NE DECOR AI ION
Last quarter of iqih century. 111. 127 mm (j in.)
Corulene: ‘The vase illustrated displays a
type of decoration that became popular
from its introduction in the last quarter of
the 19th century and is known as
‘Coralcne’. A design was painted in enamel
on the surface of a glass. Tiny glass beads,
which could be clear, coloured or opales-
cent, were then applied and stuck to the
enamel paint of the design. The object was
next put into a muffle-kiln, where the
enamel and beads were fired firmly into
place. Decoration could be in the shape of
coral, but is also seen in fleur-de-lis,
herringbone, sheaf of wheat and many-
other patterns. This type of decoration is
found in all colours and on all types of
glassware. Coralenc was so named by the
Mt. Washington Glass Company in the
U.S.A., and by several Continental and
English glass manufacturers. Its use was
not restricted to any one factory.
Amberina is generally recognised as a
clear amber glass shading to red at the top.
The patent for it, dated July 24, 1883, was
granted to Joseph Locke of the Libbey
Glass Company. This remarkable man was
born in Worcester, Kngland, in 1846 and
worked first as a potter. Guest Brothers of
Stourbridge, etchers and decorators of
glass, engaged him, but later he was
persuaded to join the firm of Hodgetts,
Richardson & Company, where he pro-
duced his copy of the Portland vase. After
various employments, Locke finally went
to America in 1882, where he was signed
on by the New Kngland Glass Company
of Cambridge, Mass., later to become the
Libbey Glass Company of Toledo, Ohio.
‘Amberina’, ‘Pomona’, and ‘Agata’ glass
are only a few of his achievements while in
their employment. Amberina was the first
patented method for producing shaded
and parti-coloured glassware from a sen-
sitive homogeneous metal.
To produce Amberina a very small amount
of gold in solution was colloidally dis-
persed in a transparent amber glass metal.
When an object had been made from this
mix, it was allowed to cool below a glowing
red heat and then certain parts were re-
heated at the ‘glory hole’ (a small opening
in the furnace). This caused a red colour to
strike in the reheated portions—but over-
firing caused a fuchsia or purple shading.
Further patents were issued either to
Locke or to Kdward D. Libbey. An
interesting development was the produc-
tion of blanks composed of sensitive
Amberina glass which, after moulding,
were reheated to produce a deep ruby
colour on the outer surface only. A design
would be cut through to the undeveloped
amber colour below, giving a rich effect.
Amberina was made in Cambridge, Mass.,
between 1883 and 1888 by the New
Kngland Glass Company. A fine though
short-lived revival was made between 1917
and 1920, when the firm had moved to
Toledo, Ohio; one of its products is
shown above.
New England Glass Company, U.S.A., 1886
Ht. 178 mm (7 in.)
Almost every glass company in Europe and
America probably made Amberina at some
time during this period. A new technique
was patented for the New England Glass
Company in 1883 and was called ‘Plated
Amberina’; this was unique to that firm.
A piece of opal or opalescent glass plated
with a gold-ruby mixture was reheated at
the ‘glory hole’, so that it would develop
deeper and lighter shadings on its outer
surface. When Amberina metal was used,
the shading would of course be amber-to-
red. However, other colours could be
made: a sensitive cobalt and ruby glass
mixture would produce a plated ware
shading from blue to ruby. Canary, blue
and green colours were also mentioned in
the patent. Plated Amberina invariably has
moulded ribbed decoration, as in the
example shown, though this had no par-
ticular bearing on the specifications men-
tioned in the patent. It was manufactured
only from 1883 to 1886.
PARFA1T oi.ass in rose amber glass
Ml Washington Glass Company, U.S.A., 1886
Ht. 127 mm (5 in.)
The Mt. Washington Glass Company,
New Bedford, Mass., attempted more or
less successfully to produce its own
Amberina glass under the name ‘Rose
Amber’. This was in every way similar to
Locke’s Amberina. Needless to say, the
New England Glass Company had an
injunction granted in 1886 in their suit
against the Mt. Washington Glass Com-
pany for infringement of their patent.
The Circuit Court of the United States
forbade the New Bedford firm to produce
its Rose Amber wares. However, it did not
seem that this injunction had any effect.
The New Bedford Board of Trade Report
of 1889 describes the making of Amberina,
Rose Amber, by ‘two companies, of which
the Mt. Washington was one’, and de-
scribes how ‘it caught the popular fancy
and was all the rage for about two years’.
According to this report it was the success
of the Amberina glass that caused Mt.
Washington to go in for an opaque shaded
ware—Burmese glass.
AMBERINA GLASS
New England Glass Company, U.S.A., iS
iii. 121 mm (475 in.)
WINE-GLASS IN ALEXANDRITE GLASS
English, beginning of 2olh century
Ht. 114 mm (45 in.)
Quite a number of Amberina pieces were
pressed or press-moulded. This piece can
definitely be attributed to the New Eng-
land Glass Company, since it follows a
design sketch made by Joseph Locke in
1884 when he was head designer for the
Cambridge winks. I lobbs Brockunier &
Company of Wheeling, West Virginia,
were licensed to manufacture pressed
Amberina by the New England Glass
Company in 1886. Sowerby’s Ellison Glass
Works Ltd., Gateshead-on-Tyne, Eng-
land, were also licensed to produce pressed
Amberina in 1883. A transparent, homo-
geneous glass shading from pale amber to
a delicate rose tint was press-moulded by
the firm of CristalletICS de Baccarat of
France from 1916. Known as ‘Rose Teinte’,
or to collectors as ‘Baccarat’s Amberina’,
it was reintroduced in 1940 as a popular
item. Its delicate colours were a result of
using less gold salts in the glass, but its
similarity to the American Amberina and
Rose Amber is undisputed.
‘Alexandrite’ glass, a single-layer glass of
three blended colours, first appeared about
1900, and is reputed to have been made by
the two English firms of Thomas Webb &
Sons and Stevens & Williams. 11 started off
as an amber glass; a portion would be re-
heated to rose, and reheated again to blue
on the outer rim, producing an exception-
ally beautiful effect. It is found in plain as
well as patterned surfaces. Stevens &
Williams used a differing technique to
produce the same effect. They cased a body
glass of transparent amber with rose and
blue glass. The outer casings of blue and
rose were then cut away, to reveal the
yellow glass beneath. Kolo Moser, a glass
designer of Bohemia of the early 1900’s,
produced an amethyst transparent glass
which carries the mark ‘Alexandria, but
this one-colour ware should not be con-
fused with the work attributed earlier to
Webb and Stevens & Williams.
PITCHER IN RUBY GLASS WITH DEVELOPED
OPALESCENT DESIGN
I hi i ijih century. I It. 279 mm (11 in.)
Opalescent Glass: In the late 19th century
glasses with raised opalescent white de-
signs became very popular. A coloured
gather of glass was heavily coated with a
sensitive, clear colourless glass containing
bone ash and arsenic. This was blown into
a patterned mould to give it the raised
design. It was then cooled slightly and
reheated, the raised parts striking an
opalescent white, while the background
retained the original colour. Inexpensive
glassware in this technique was produced
by Hobbs Brockunier & Company of
Wheeling, West Virginia; Alexander J.
Beatty & Sons of Steubenville, Ohio;
Phillip Arbogast of Pittsburgh, Pennsyl-
vania ; John Bryce & Company of Pitts-
burgh ; King & Company of Pittsburgh;
and Doyle & Company of Pittsburgh, and
others. Thomas Davidson of George
Davidson & Company Ltd. the Teams
Glass Works, Gateshead-on-Tyne, Eng-
land, patented in 1889 a process for making
a pressed, shaded version, in which the
opalescence was either white or of the
same shade as the body metal.
VASE IN BURMESE GLASS
Ml. Washington Glass Company, U.S.A., 1885
Ht. 305 mm (12 in.)
‘Burmese’ glass is a single-layered glass
shading from opaque greenish-yellow to
deep pink at the top. It was developed by
the Mt. Washington Glass Company,
New Bedford, Mass. Frederick S. Shirley
patented his formula for Burmese in 1885
for the firm. He produced the glass by
adding small amounts of fluorspar, feldspar
and oxide of uranium to essentially the
same ingredients as used by Joseph Locke
to make his Amberina glass. The fluorspar
and feldspar gave the glass its translucency,
and the uranium oxide made the ordin-
arily translucent white glass melt a pale-
yellow in colour; the gold made the glass
sensitive to thermal changes so that when
reheated at the ‘glory hole’ it struck a
salmon pink colour, which shaded down
to the original yellow. A second reheating
caused the pink glass to revert back to its
yellow colour, a feature quite often seen
on the rim of a piece of Burmese glass.
Frederick Shirley’s formula for Burmese-
glass was patented in England in 1886.
Thomas Webb 8i Sons of Stourbridge,
England, purchased a licence to copy-
Burmese products as well as to produce
their own shapes and designs. Most ol t he-
English Burmese ware is acid-finished,
though Mt. Washington produced both
glossy and acid-finished Burmese ware.
Thomas Webb & Sons called their glass
‘Queen’s Burmese Ware’. The glass was
much used for the patent ‘fairy lights’ or
small individual candle shades so popular
in England and America in the late
‘eighties. Queen Victoria ordered a tea-set
in Burmese glass from the Mt. Washington
Glass Company, enamelled with what was
to become known as the ‘Queen’s’ design.
The ornamentation of Burmese ware was
often of a highly decorative order. Verses
by well-known poets, Egyptian scenes, and
bird and animal portrayals were included
in enamelled motifs. Occasionally, finely
wrought applied decoration w ould be used.
Peach Blow: When a ‘Peach Bloom’
coloured Chinese porcelain vase was sold
for $18,000 in 1886, this caused such a
sensation that products labelled ‘Peach
Bloom’ or —slightly changed ‘Peach
Blow’ attracted many sales. ‘The glaze on
the vase was described as being the colour
of ‘crushed strawberries’. The magic of
the name attracted the attention of manu-
facturers of coloured art glasses, who tried
to devise new types suitable for this name.
Hobbs Brockunicr & Company of Wheel-
ing, West Virginia, produced such a glass
and called it ‘Wheeling Peach Blow’.
Replicas of the ‘Morgan’ vase were made,
like the example illustrated, in both glossy
and acid finishes. The moulded Stand with
its five-headed griffin is in an unimportant-
quality amber glass, hut the vase itself is
made of white opal glass plated with 1
transparent amber glass, made heat-sensi-
tive with gold salts. Reheating caused the
glass to strike a ruby colour, shading to
yellow or amber.
The Mt. Washington Glass Company
filed trade-name papers on the terms
‘Peach Blow’ and ‘Peach Skin’ through
Frederick S. Shirley in 1886. As a
colourant for their new products Shirley
substituted a small amount of cobalt or
copper oxide, instead of oxide of uranium
as in making Burmese. This produced a
homogeneous glass shaded pale grey-blue
to a delicate rose tint in the reheated
portions. When plunged in acid the surface
acquired an all-over slightly grey cast. As
it is a single-layered glass, the shading is
the same on the inside as on the exterior.
The Mt. Washington Peach Blow wares
were manufactured in similar shapes to
their Burmese ware. Moulded and applied
decoration were used, as well as gilding
and enamelling. The example illustrated
shows the ‘Queen’s’ design, as ordered by
Queen Victoria from the firm. The pattern
is of conventionalised flowers in raised
enamel, much of the decoration done in
pure gold reduced with acids.
The success of its Amberina glasses caused
the New England Glass Company to
experiment further with heat-sensitive
glasses. One of the resulting products was
patented by Edward D. Libbey in 1886
and called at first ‘Wild Rose’, later ‘Peach
Blow’. It is a single-layered glass shading
down from red to white in the lower part
of the piece. To produce it, an opal glass
was combined with a gold-ruby glass in
one pot. When a vessel had been formed,
reheating produced the rose colouring in
the required parts. Glasses made from this
metal were moulded, decorated with gild-
ing and enamelling and also acidized to a
satin finish. Occasionally, they would be
left in the original glossy state. The vase
illustrated was decorated by Joseph Locke
for his daughter Nora. The etched reliel
designs covering the surface of the glass
have been outlined and highlighted with
gold traceries and a dark brown mineral
stain.
At about the same time that the U.S.A.
glass-making firms were experimenting
with heat-sensitive glasses, both Thomas
Webb & Sons and Stevens & Williams of
England manufactured shaded wares
which they termed ‘Peach Glass’ or ‘Peach
Bloom’. Webb’s Peach Glass was cased,
the inner layer being creamy coloured with
a slight ly greenish cast in the upper portion.
It is similar in appearance to Hobbs
Brockunier & Company’s ‘Wheeling Peach
Blow’. Stevens & Williams of Stourbridge
produced a glass called ‘Peach Bloom’
which was also very much the same in
appearance. The English Peach glasses
were produced in both glossy and acid
finishes, and arc frequently found with
elaborate gold decoration on both finishes.
Occasionally, Webb’s Peach Glass will
have the Webb incised mark on the base;
Stevens & Williams ware also sometimes
bears a mark under the foot.
The Boston & Sandwich Glass Company,
Sandwich, Mass., manufactured a glass
known as ‘Sandwich Peach Blow’. This
was a single-layered glass, strawberry ice
cream pink in shading, often found in
moulded and twisted swirl decoration; see
the example above, which also has the
characteristic thorn handle of the period.
Overlay decorations in a camphor or
greyish colour are quite usual, the com-
plete piece having an acid finish. Many-
other types of glass are loosely termed
‘Peach Blow’, but basically, apart from a
slight variation in colour shading, the
products can be summarised as follows:
Webb and Wheeling Peach Blow are
always lined, but Mt. Washington, New-
England and Sandwich Peach Blow are
never lined. The Bohemian manufacturers
soon cashed in on the vogue of Peach Blow
wares, producing far cheaper glasses,
which forced the better products off the
markets, though their wares in no way-
resembled those made in America and in
England.

BOWL IN DARK RED GLASS, ENAMELLED AND GILT
Byzantine, i ith-t2th century A.D.Ht. 79 mm (3*13 in.)
Theophilus, describing ‘how the Greeks
embellish with Gold and Silver’, said ‘they
take the white, red and green glass, whicb
are used for enamels, and carefully grind
each one separately with water on a
porphyry stone. With them they paint
small flowers and scrolls . . .’. He went on
to describe the furnace in which they fired
window glass, including painted glass, and
specified that the glass be bedded down on
quick-lime. Vasari, who wrote an account
of the stained glass technique of Gugliel-
imo de Marcillat (d.1529) stressed that
‘this burning in of the colours requires the
greatest caution, for if the heat be too great
it will cause the glass to crack, and if
insufficient it will not fix the colours’. To
test the enamel, Theophilus suggested
that you should ’see if you can scratch off
the colour with your nail’. Glasses of the
type described by Theophilus are known,
dating from the 1 ith to the 12th centuries;
one of them is illustrated.
VASE WITH ENAMELLING AND GILDING
Syria, Ј.1320-30 A.D. Ht. 302 mm (11 88 in.)
(See also colour photograph 11)
Not until the 13th and 14th centuries was
the next high point in the history of
enamelling reached, with the great Islamic
mosque lamps and other vessels produced
in the near East, particularly in Syria.
Besides the weli-known lamps which
adorned Moslem holy places, the Syrian
enamellers decorated such objects as
footed bowls, sprinklers, globes, beakers
and long-necked bottles. The vase illus-
trated is decorated with golden arabesques
and fish motifs finely outlined in red. The
inscription round the widest point of the
vessel repeats the words ‘The Wise’
(referring to the God of Mohammed). The
medallions around the neck of the vase
probably contain the armorial symbol of
the nobleman who commissioned the
object. The glass itself is not clear and
colourless, for most of the Islamic glass of
that time is of a brownish or greenish tint,
often clouded with bubbles.
Adding: The Skill of the Decorator
In Islam the art of enamelling came to
maturity from the 13th century, the finest
work being done in Syria. The lamps in
Egyptian mosques exported from Syria
are the most famous examples of all the
Islamic enamelled glass. Strictly speaking,
these objects are lamp-holders or lanterns
rather than lamps, for they enclosed an
oil-vessel which provided the illumination.
They were suspended from the roof of the
mosque by chains which, when the roof
was high, passed through a glass globe or
ball, from where the chains radiated to the
handles of the lamp. Enamelled glass was
used for these lamps, not only for its
obvious decorative effect, but because the
Koran said, ‘God is the light of the
Heavens and the Earth: His light is as a
niche in which is a lamp, the lamp in a
glass, the glass as it were a glittering star’.
Many reproductions of mosque lamps
were made at the end of the 19th century.
Unfortunately, like the Romans, the Is-
lamic glass-making artists left no written
record of the craft which they practised
with such very great skill. It is not until
the 15th century that a contemporary
record of enamelling techniques is found,
but from that time, especially with the
advent of printing, there is no lack of
written evidence. Enamelling on glass was
a speciality of the Venetian glass-makers,
a technique which they developed during
the 15th century, probably reaching tech-
nical maturity by the middle of the
century. In all essentials their enamelling
technique was similar to that of the
Islamic artists, yet it would appear that the
Venetians independently re-invented en-
amelling on glass—possibly borrowing the
idea from the Italian worker in metal. By-
tradition the invention has been ascribed
to the glass-maker Angelo Baroviero.
Throughout the 15th century the coloured
glass the Venetians had invented—blue,
green, white, purple and turquoise—was
richly enamelled and gilded.
GOBLET IN  COLOURED GLASS
ENAMELLED DECORATION
Venice. Italy, late 15th 10 early 16th century
By the beginning of the 16th century the
fashion in Venice for coloured glass had
given way to a desire for clear colourless
glass. Enamelling, along with other forms
of decoration, was usually found on clear
glass specimens from this time, although
the clear metal was far less suited to the
technique. The pictorial work which had
been used so much on coloured glass soon
disappeared, and enamelling was restricted
to a few simple motifs. A favourite of these
was a form of scale pattern in bead-like
dots of enamelling and light gilding,
through which lines were scratched, al-
though simple bands of coloured dots were
sometimes the sole decoration of the piece.
Another familiar motif of the late 15th-
and early 16th-century glasses resembled
a lily-of-the-vallcy or a small fruit with a
calyx attached, as on the goblet illustrated.
This goblet also helps to show how the
Venetians combined their coloured and
clear glass in one vessel.
Although representational painting was no
longer the fashion by the beginning of the
16th century, a transitional phase is
represented by a series of glasses enamelled
with grotesque ornamentation built up
from patterns of flowers, leaves, animal
and human-like forms. Armorial glasses
were probably among the latest Venetian
work in the technique of enamelling. A
shield of arms or an emblem would be
added to the few simple decorative motifs
that were now in use on clear colourless
glass, and at their best, these were very
well drawn, as in the dish illustrated.
However, in some cases there is reason to
suspect that the shields were later addi-
tions. Venetian taste, now inclining to-
wards the new, clear colourless metal,
began to appreciate glass for its own sake
and to be interested more in its quality and
beauty of shape than in its added decora-
tion. By the middle of the 16th century the
technique of enamelling, apart from wares
made for export, had virtually passed out
of fashion in Italy.
beaker with enamelled decoration
Made in Venice for the German market, 1603
Ht. 267 mm (105 in.)
Reuhsadlerhumpen, pale green glass with
enamelled decoration
Bohemia, 1654. Ht. 200 mm (11-4 in.)
Although enamelling became unfashion-
able in Italy, it remained a favourite form
of decoration in Germany until the second
half of the 18th century. The earliest
enamelled glasses thai might have a claim
to being German are some cylindrical
beakers commonly bearing German arms,
but it is now thought that these were
ordered from Venice by German buyers.
The beaker illustrated, inscribed ‘Roccho
Grasl’, is a typical late example of the type.
The most productive enamelling work-
shops in the late 16th and early 17th
centuries were situated in Bohemia,
whence the craft was carried to Germany
by emigrant workmen. German enamel-
ling, with its bold colours, has the attrac-
tiveness of a peasant art, but the enamels
used were not of fine quality nor were the
drawings of any distinction. The glass
itself was relatively poor, and only a few
shapes were attempted: the tall Stangen-
glas, the cylindrical Humpen, jugs, beakers,
and screw-topped spirit flasks.
The subjects used by the German enam-
ellers for the most part belong to peasant
art. Gonventional portraits, simplified
landscapes, scenes of artisans at work,
guild processions, satirical subjects, alle-
gories and inscriptions, usually illiterate
and sometimes obscene, are common.
Biblical subjects, the Emperor and the
Seven Electors and the Reichsadler are also
depicted on these glasses. The Reichsadler
is the Imperial double-eagle, bearing on
its wings the arms with names of a fanciful
hierarchy of the Holy Roman Empire; the
arms are arranged in groups of four in the
so-called Quaternion system derived from
Schedel’s Wellkronik of 1483. They begin
with those of Rome and the three spiritual
Electors (Treves, Cologne, Mayence),
balanced by the four temporal ones
(Bavaria, Brandenburg, Saxony, Palatin-
ate), ending with four ‘Dorffer’ and four
‘Birg’. The Reichsadlerhumpen may have
had some contemporary significance, since
they originated during the strife of the
Thirty Years’ War. The Retchsadler and
the ‘Elector’ glasses remained popular for
a long period.
Adding: The Skill of the Decorator
In the guild regulations of the glass-
makers of Krcibitz in Bohemia (1669) one
of the tasks set the aspiring craftsman was
to ‘prepare with colours an Imperial
Eagle, with all its members, in one and a
half days’. This referred to the Reich-
sadlerhumpen, which most likely had to be
fired more than once, those enamels which
required a higher temperature being fired
before the ones which fluxed at a lower
heat In all essentials the contemporary
descriptions of enamelling agree with each
other, the cakes or beads of enamel being
pounded on marble or porphyry, [he
powder thus resulting being washed and
applied to the already annealed glass vessel
and the glass being carefully reheated so
that the enamels fused to it successfully. It
would seem that enamelled vessel-glass
began to be fired in special ‘muffle kilns’
rather than in the glass furnace itself by
the end of the 17th century. As in ordinary
coloured glass, metal oxides were used to
give the enamels their various colours.
‘SchwarzloT, or black enamelling on glass
was a Dutch invention originally used lor
the decoration of windows; it spread into
Northern Germany, and was developed b\
Johann Schaper in the third quarter ol the
17th century. Schaper was born at Ham-
burg in 1621, was at Nuremberg from
1655, at Ratisbon in 1664 and died in 1670.
Originally a painter of stained window-
glass, he was the first of the South German
llausmaler or independent artists, obtain-
ing undecorated glass and pottery and
decorating it to Ins own invention. I le used
copper oxide mixed with black enamel
pigment, painting this on to the glass ahd
then scratching his design through it with
a needle in the manner of the stained-glass
painter. He painted mainly in black, with
slight touches of red and gold. In the
beaker illustrated he used for inspiration
an engraving of a gypsy procession by
Jacques Callot (1592-1635; Callot’s work,
depicting scenes of Italian life with fan-
tastic caricature, was very popular in the
17th and 18th centuries).
Adding: The Skill of the Decorator
Johann Schaper gained some followers,
one of whom, like himself, was a window-
glass painter. This was Johann Ludwig
Paber, who also painted faience. Herman
Benckcrtt of Frankfort-on-Main was an-
other of Schapers known followers. The
Humpen illustrated is a remarkably fine
example of the Schwarzlot technique,
probably the work of one of Schaper’s
imitators. The scene shows a man being
pushed into a pigsty by a laughing and
gesticulating crowd—presumably for
drunkenness, for the Latin inscription on
the reverse is a diatribe against drinking.
After 1700 the Schwarzlot technique was
carried on in Bohemia and Silesia by
independent decorators. Though they
were using the same medium, in style and
subject their work was very different.
They concentrated on landscapes, hunting
scenes, warriors and scenes from peasant
life, then replaced these by scroll-and-
strap-work, Chinese figures, putti and
fantastic animals.
In Spain a distinct style of enamelling
glass emerged in the late 15th, 16th and
early 17th centuries. It originated in
Barcelona, where glass-makers were in
considerable rivalry with Venice towards
the end of the 15th century. The most
important product of the Barcelona crafts-
men was their enamelled ware, which
surprisingly showed a complete inde-
pendence of Venetian models. The colours
they used for their enamels were notably a
light yellowish-green, in combination with
yellow, white and lavender blue, and
occasionally they used touches of black,
red and brown. Their style of enamelling
has been described as primitive, but also
as powerful in design. The motifs they
used were Near-Eastern in feeling, such as
stylised trees, arabesque foliage, running
animals and pairs of birds. Occasionally,
figures in 16th-century European costume
were used. The vase illustrated was a
favourite shape, showing a typical motif
resembling a small fruit with calyx attached
which was also found on Venetian glass.
Enamelled decoration on glass, though
familiar on the Continent from the 15th
century onwards, was apparently never
attempted in England until the middle of
the 18th century. Two types of enamelling
emerged in the third quarter of the 18th
century, one practised by the Beilby
family of Newcastle-on-Tyne, and the
other practised on the opaque white glass
of the period (see Opaque White Glass).
William Beilby (1740-1819) and his sister
Mary (1749-97) were recorded by Thomas
Bewick, the wood-engraver, to have ‘had
constant employment of enamel-painting
of glass’. William had learned the art of
enamelling in Birmingham, and proceeded
to enamel glasses from about 1762. At
what point Mary joined him in his work is
not known, for their glasses are signed
simply ‘Beilby’. Their brother Ralph
Beilby (1743—1817), to whom Thomas
Bewick was apprenticed, may have had
some influence on their work through his
knowledge of heraldic engraving.
The first Beilby enamelled work was of an
heraldic nature, in both white and coloured
enamel on glasses or goblets with ogee or
bucket-shaped bowls. The Beilbys’ style
changed about 1774, and subjects such as
scenes of hunting, fishing and shooting,
pastoral scenes including ruins, and Chin-
ese subjects appeared, the shapes of the
glasses becoming more diverse. Colours
were not always used on these glasses, and
the subjects were often rendered in white
monochrome, sometimes with a faint tint
of blue or pink. Occasionally they followed
the motifs found on engraved glasses of the
period, such as hops, barley and the flower-
ing vine. Beilby glasses more often than
not have an opaque white enamel-twist
stem. Thomas Bewick became attached to
Mary Beilby, who unfortunately in her
early twenties suffered a paralytic stroke.
The brother and sister left Newcastle-on-
Tyne after the death of their mother in
1778, and went to Fife in Scotland, where
apparently they did not continue their
work.
Hi. 105 mm (4-15 in.)
BEAKER WITH CUTTING, GILDING AND
ENAMEL PAINTING
By Anton kothgasser, Vienna, Austria, r.1825
Hi. 115 mm (4-5 in.)
Many drinking and souvenir glasses with
translucent enamelling still exist which
were decorated by Samuel Mohn (horn
1762 in Weissenfels, died 1815 in Dresden)
and his son, Gottlob Samuel Mohn (born
1789 in Weissenfels and died 1825 in
Vienna). Their chief technical innovation
was the preparation of transparent enam-
els, in contrast with the heavy opaque
enamels used particularly in the 16th and
17th centuries. Samuel Mohn had pre-
viously been a painter of silhouettes on
porcelain. His son, who secured the
patronage of the Emperor, painted sil-
houettes on glass tumblers, as well as views
and allegorical figure-subjects. The Mohns
were among the first to cater for the market
for mementoes caused by the revival of
travel for its own sake, after the finish of
the Napoleonic wars. They worked on a
large scale, helped by apprentices, and
using transfer printing for outlines to
speed up the process, but the delicacy of
their paintings, usually on glasses in the
Ranfthecher form, makes these a worthy
item for collectors.
The Mohns’ discovery of transparent
enamels was further improved by a Vien-
nese porcelain and glass decorator, Anton
Kothgasser (1769-1851). He was a painter
from the Imperial Porcelain Factory, who
started working on stained glass with
Gottlob Mohn. He managed to make his
colours more brilliant than the Mohns’,
and made full use of yellow stain, or the
stain made from a compound of silver, as
used on stained glass windows. His glasses
are usually waistcd, with a heavy cut base
and sometimes lavishly gilt, as in the one
illustrated. Views of towns, portraits,
genre scenes and flowers, sometimes
copied, are featured in his work. His
glasses have been described as the finest
examples of the Viennese Biedermewr
style. Kothgasser and the Mohns had
many pupils and many imitators. In the-
same movement was Franz Anton Siebel
(1777-1842) of Lichtenfels in Upper
Franconia.
PERFUME BOTTLE IN COLOURLESS GLASS,
ENAMELLED AND GILT
Emile Galle, France, dated 1880
I li 157 mm (613 in.)
‘CROWN MILANO’ EWER WITH ROPE HANDLE
Ml. Washington Glass Company, U.S.A.
Ht. 254 mm (10 in.)
Emile Galle (1846 1904) the great French
glass-maker, is less well-known for his
enamelled work than for his work in the
field of cameo glass. Yet he was an expert
in the art of enamelling, and showed this
gift in his first major exhibition in Paris in
1878. It was there that he established his
reputation as an inventive and original
glass artist, using—among other tech-
niques—enamelled decoration on triple-
cased glass with gold leaf insertions. At the
exhibition in Paris in 1884 he showed
examples of clear colourless glass decorated
with enamelling, cutting and engraving.
At the 1889 Exhibition in Paris he showed
his finest works. His colours had taken on
a new softness, and a fresh note of lyricism
could be sensed in his work. The decisive
factor in his work seems to have been
Japanese art, and after 1889 he developed
to maturity the ‘nature-style’ that was to
epitomise his thoughts and ideas and was
to bring him his greatest fame. The
singular lyricism ol his work can be seen in
the enamelled perfume bottle illustrated.
An elegant painted and enamelled glass-
ware was produced by the Mt. Washington
Glass Company, New Bedford, Mass.,
towards the end of the 19th century. It was
first called ‘Albertine’, though a ware that
was the same in texture, shape and
decoration was advertised more cxotically
as ‘Crown Milano’ in about 1890. Unless
the perishable paper label survives, ‘Al-
bertine’ cannot be differentiated from
unmarked ‘Crown Milano’. Frederick S.
Shirley and Albert Steffin of that firm were
issued with a patent in 1886 for a means of
decorating an opal glassware. The articles,
which had a convex ribbed body, were
treated as follows: a perforated corrugated
stencil was laid against them; pulverised
carbon was dusted against this, which left
a design for the enameller to follow when
the stencil was taken away, so that there
was no distortion in the finished product.
When ‘Crown Milano’ was made, a blank
in white opal glass was shaped by free-
blowing, moulding or press-moulding.

Core-formed Amphoriskos, dark blue; marvered-in threads combed
to feather pattern; applied handles; Egypt, 1430-1340 B.C.
Ht. 08 mm (385 in.)
Core-formed Amphoriskos, dark blue; combed and marvered-in
threads; Eastern Mediterranean, 2nd-ist century B.C. Ht. 175 mm
(6-88 in.)
Cinerary Urn and burial goods, free-blown; slightly weathered;
Roman Empire, ist~4th century A.D. Urn ht. 213 mm (8-38 in.)
Bottle, pale blue-green clear glass, mould-blown in fish form;
possibly Western Roman Empire, 1st century A.D. Length 240 mm
(9-45 in.) 64
5. Jug in amber glass with weathering, mould-blown, bearing early
Christian symbols; Palestine, 578-636 A.D. Ht. 140 mm (5-5 in.)
6. Bottle in clear green glass, slightly weathered, with applied ’snake
trails’; Roman Empire, 2nd-early 4th century A.D. Ht. 181 mm
(7-13 in.)
7. ‘Dromedary’ Flask in clear yellowish glass, heavily weathered;
Syria, 6th-8th century A.D. Ht. 120 mm (4-7 in.)
8. Covered Daumenglas, clear green; with milled trails and applied
finger and thumb sockets; Germany, c. 1625-1650. Ht. 318-0 mm
(125 in.) 65
9. Covered Goblet in clear colourless and opaque white glass, in the
filigree technique; Murano, Italy, late 16th or early 17th century.
Ht. 369 mm (14-5 in.) (City of Liverpool Museums)
10. Vase in the millefiori technique, signed ‘E. Barovier,’ Murano, Italy,
late 19th century. Ht. 413 mm (16-25 “>•)
11. Beaker in pale straw-tinted clear glass, slightly weathered; enamelled
and gilded; Islamic, c. 1170-1270. Ht. 121 mm (4-75 in.)
12. Humpen, pale straw-tinted clear glass, enamelled and gilded with
Emperor and Seven Electors; Bohemia, dated 1625. Ht. 298 mm
(11 75 in.)
13. Beaker in clear colourless glass in Zwischengoldglas technique;
Bohemia, 1730’s. Ht. 79 mm (3-13 in.)
14. Glass Tile with gilding and black enamel, covered by protective glass
film; Syria, 6th-12th century A.D. 89×83 mm (35 X325 in.)
15. Covered Vase in clear colourless glass, engraved and gilded; made at
the Royal Glass-house, Spain, c. 1775-1800. Ht. 337 mm (13-25 in.)
16. Frigger; England, 19th or early 20th century. Ht. 458 mm (18 in.) 81
17. Buttle in pale green clear glass; linear and facet engraving; slight
weathering; Persia, 10th century A.D. Ht. 216 mm (8-5 in.)
18. Covered Goblet in clear colourless glass with Hochschmll engraving;
probably Silesia, early 18th century. Ht. 321 mm (12-63 ‘n¦)
19. Wine-glass in clear colourless glass; glass probably English, engraving
Dutch; Foot inscribed in diamond-point engraving: Jacob Sang, inv /
el fee I Amsterdam, 1759- Ht. 187 mm (7-38 in.)
20. Vase, clear glass with red flashing on inside, cased in opaque white
glass; engraved in cameo technique by George Woodall; Thomas
Webb & Sons, Stourbridge, England, late 19th century. Ht. 232 mm
(9 13 in.) 128
21. Bowl and Dish in clear colourless glass with cut decoration; Ireland,
c. 1825. Length 220 mm (875 in.)
22. Covered Goblet in clear colourless glass, diamond-point engraved;
Netherlands, late 17th century. Ht. 254 mm (10 in.)
23. Goblet (English) in clear colourless glass; Dutch stipple-engraving in
style of David Wolff”; late 18th century. Ht. 210 mm (8-25 in.)
24. Decanters with stoppers in clear blue glass; gilded decoration;
probably Bristol, England, early 19th century. Ht. 276 mm
25. Jug with pewter lid; opaque light blue glass, engraved and gilded;
made at the Royal Glass-house near the Palace of I.a Granja de San
Ildcfonso, Spain, c. 1775-1800. Ht. 270 mm (1063 in.)
26. Tea Jar in opaque white glass with enamelled decoration; South
Staffs., England, c. 1770. Ht. 143 mm (563 in.)
27. Covered Goblet in opaque white glass with enamelled and gilded
decoration; Bohemia, c. 1785. Ht. 279 mm (11 in.)
28. Small Bowl in black glass; I la ugh ion Green Glasshouse near
Manchester, England, c. 1605-1653. Ht. 32 mm (1-25 in.) 144
29. Beaker in Tithyalin’ glass with gilded cut inscriptions; made by
F. Egcrmann, Blottcndorf hear Haida, Bohemia, c. 1830. Ht. 108 mm
(425 in)
30. Covered Goblet in clear colourless glass with engraved decoration;
Nuremberg, 17th century. Ht. 445 mm (17-5 in.)
31. Posset Pot, in clear colourless ‘lead’ glass; raven’s head seal on spout.
.Made by Ravenscroft, London, England, c. 1677 + . Ht. 84 mm
(33′ >n)
32. Perfume Bottle, clear colourless glass; cut decoration and panels in
the ‘crystallo ceramic’ technique; made by Apsley Pell.itt at Falcon
Street Glasshouses, Southwark, England, after 1820. Ht. 140 mm
(55 ‘n) 145

FILLERS AND CEMENTS
Fillers and cements arc used for the repair of china, glass, wood and occasionally metal. Adhesives are also used as fillers and cements, with the addition of a little colouring matter or powder to give them colour, body or both.
Plastic Padding. Described in the section on adhesives, this makes a useful filler for metalwork because of its colour, and it needs no further additives for this work. It is not usually used for china restoration work.
Wood fillers. There are several makes of plastic wood which are used as fillers for small holes in woodwork.
Wood filling compounds of various kinds and in various colours can be bought, in proprietary brands, and these are tenacious and excellent. When dry, fillers can be sanded to a smooth finish. Epoxy resin fillers such as Araldite, suitably coloured with dry powder pigments or oil paints, can be used as fillers for rebuilding small missing sections of woodwork. The slow drying of sonic types
makes them rather difficult to use, and care must be taken that, in larger repairs, shrinkage does not leave hair cracks between the new pieces and the old.
Various compounds are used for filling, and making casts and pressed moulds, and for modelling new pieces where it is not possible to make moulds.
Bondapaste. This is an excellent adhesive filler which can be built up on itself in layers, and when hard can be worked with files and gravers. It is a good filler and cement for china restoration needing no additive. It dries quickly so any moulding or modelling must be done fast.
Isopon. This is a paste filler which is mixed with a hardener. It dries quickly and doesn’t shrink under heat, and it needs no parting agent to separate it from the mould. It can be fined and abraded with glass paper and other abrasives. It sticks to itself so it can be used in layers, but it does not stick to china, so after hardening and removal of the mould, it must be stuck to the china with Araldite, exactly as if it were an ordinary broken piece. It can only be worked for about ten minutes before it becomes too tacky, but this is an advantage when you are fairly practised and it can be used for quite large pieces without internal support as it sets fast, so will not sag so readily as a slower setting filler. The fact that it will not adhere to plasticine also allows props and pads of plasticine to be used to support it while it is drying.
Plaster of Paris. Widely used for the making of moulds, it is quick drying and easy to handle, but it is not suitable by itself as a filler, being too soft and porous.
Seccotine with dental plaster. A hard setting adhesive mixture which is very useful for small repairs to gesso where the object is never going to come into contact with water.
Cascantite with dental plaster. Another good mixture, which can be cut and shaped with woodworking tools, provided it has not dried out completely (see Adhesives for details of Cascamite). It has the disadvantage that it must be stuck into place as it is not self-adhesive. It is most useful for filling Alabaster which it matches perfectly.
Araldite. The two tube epoxy resin adhesive described in the section on Adhesives is the most versatile filler, having but two disadvantages. It is rather sticky to use, and it dries very slowly so cannot be used for large unsupported pieces. However, it sticks so well to the object being mended, and, when set, it approaches so closely the appearance of biscuit china, that many restorers prefer it to the quicker setting compounds. It can be mixed with whitening, or kaolin or titanium dioxide to make a filler for china. Mixed with these same materials, it is also an excellent cement for use when dowelling.
Sawdust, stone powder, metallic powder, colouring pigments, either dry powder or oil paint, will all mix with Araldite to simulate almost anything you like to name.
will
It blend and adhere to the whole piece and strengthen it enormously. In the old days, plaster of Paris was used for this kind of building and restoration, but it was not strong or waterproof, whereas epoxy resins are both. Ali example mentioned in the section oil Aniis and Armour is the building up of an old worm-eaten gunstock with epoxy resins coloured to match. It can be injected by hypodermic syringe into wooden holes or cracks where it will strengthen and preserve. Unfortunately it will not take a very high Polish which may limit its use.
Fillers for Glasswork. Modern acrylic resins, which are usually powders with which a liquid is mixed, are ideal for glass restoration and repair, as if mixed with care so that there are no air bubbles present, they set to a trans- parent, very slightly yellow material which is as near to glass as you can get. Acrylic resins call be coloured with dry powder pigments to simulate coloured glass or china, and sonic can be bought already coloured.
Tensol Cement No. 7 and Aertilite Cold Curing Resin are two excellent products in this range. his is another versatile acrylic resin mentioned several times in this book. It can be used, mixed fairly thinly, to coat things made from cane or wickerwork to strengthen or preserve them, and to mend glass or certain types of china. With care it can be mixed with dry powder pigments to simulate jasper (`Wedgwood’) ware. Acrylics are not particularly difficult to handle, and in fact they are great fun to experiment with. They make excellent solid `glass cases’ for small objects which you wish to preserve. The technique for doing this is not within the scope of this book, but it is easy enough to work out for yourself, bearing in mind normal casting techniques!
Use acrylics according to makers’ instructions in so far as mixing etc. is concerned.
Gilder’s Coinpo. Invented by the Adam brothers, it has ever since been used for all kinds of moulding work instead of woodcarving, and is still a most excellent material for repairing moulded picture frames or some types of nioulding on furniture and fittings.
Recipe I.
i lb. Scotch glue 2 lbs. resin
i gill real turpentine T pint linseed oil whiting
Dissolve die glue in a gallon of water. Boil the resin, the turpentine and the oil together, and then add to the glue and water. Boil the whole lot together until the liquid has reduced a little, so that the mixture is not too runny. Add this to the whiting powder in a bucket, stirring constantly until the whole has the consistency of dough.Boil all the ingredients together for half an hour, and then add to a bucket containing whiting, rather as one adds milk and eggs to a bowl of flour when making batter. Mix until the compo has the consistency of dough.
FLY MARKS
Fly marks call be scratched offmany objects with a sharp knife or even with the point of a needle. Chalk mixed with a little ammonia will remove fly blows from a hard surface such as stone. Fly blows on glass or any surface which will
can
not be damaged by it ca be removed by washing with a five per cent solution of caustic soda, followed by rinsing. Solvents such as petrol or benzine will remove fly marks, but will also remove varnish, so be careful.
Fly marks on prints call sometimes be removed by alternate baths of ]lot and cold water in that order, and then drying out between pieces of blotting paper.
FRAMES
Painting and Texturing. Picture frames come in all shapes and sizes, complicated and simple, and there are just as many techniques for restoring and renovating them. They can be cleaned and painted with varnish or matching paint, gilded, given two-tone or antique finishes, textured or spattered. It depends a great deal on the type of frame which of these methods is used, and also oil the picture, which could well be killed by all over-weight frame or one coloured incorrectly. The frame should never be lighter in colour than the lightest part of the painting. Don’t put a white frame round a picture which does not contain white. If the frame is too glossy, the highlights distract the eye from the picture itself. Frames can also be made into trays, by adding a suitable centre, or into mirrors. Frames for watercolours, pastels, or photographs, which have glasses, should be as simple as possible so as not to overpower the picture.
First clean the frame thoroughly. Oil a simple wooden one, detergent, water and sandpaper all carefully used should remove old grease and grime. While the frame is drying, the type of repainting or decoration ion can be decided upon. If it is a plain frame in good condition, a light rub down with a fine grade of sandpaper will probably be all that is needed before a new coat of varnish is applied. Of course the varnish call be taken off, and the frame left in its natural wood state and just lightly rubbed with wax Polish, but if the old surface is stained or badly scratched, the new coat must be opaque, and some kind of paint is the answer. Ordinary household paint or plastic emulsion in a suitable colour looks quite well, but with a little more trouble, really exciting finishes call be obtained, and in most cases a broken finish definitely  looks best.
Polymer colour water based paints made either by Rowney under the trade name of Cryla, or by Reeves under the name of Polymer colours, are particularly useful, as they can be applied very thinly producing a pickled effect over stained wood, or else thick as squeezed from the tube, and then figured, or used for two-tone work. Polymer paints contain water and should be water thinned to the required consistency, not with turps or white spirit. They dry very rapidly, but if you want to slow down the process, use the special retarder. The colours, which conic ili the full range of artist’s oil paint colours, mix very well, and when dry will have a slight sheen, which is excellent for frames. A gloss medium is obtainable, or, although it is not really necessary as the paint is quite waterproof when dry, it can be overpainted with a polymer varnish to keep the frame in first class condition for years. Any tools or brushes used to apply the polymer paints should be washed thoroughly in water before they dry out, but if this is forgotten, a soaking overnight iii methylated spirit will the trick. Acetone will also dissolve these colours.
Texturing with polymer colours is not too difficult. The paint should have the consistency of thick cream. It should be painted on to the frame fairly thickly and, while it is still sticky, textured with a comb, toothbrush, an old wire brush, or anything else you caii think of that would scrape interesting patterns in the paint. A little practice on an odd scrap of wood painted with polymer, will give you some idea of texturing. Another method is to put oil different coloured layers of polymer, letting each one dry before adding rile next, and cut through these with varying pressures to get the colours showing through at different levels. Diagonal, cross, mitre or lengthwise strokes can be used, and if you get really ambitious, all sorts of curved lines and squiggles. Another way of texturing is to paint the frame with polymer, and then while it is still sticky, sprinkle on a little sand, or rice, or any other small hard grained substance, shake off the surplus, and when dry overpaint with another thinner layer of polymer, and then finish with polymer varnish. A small sponge gently pressed into sticky paint will also give an interesting finish, especially if the two-tone effect is desired, using a double layer of paint. Spattering gives a nice spotty effect and should be applied over the plain basic colour oil the frame by gently tapping a water paint brush loaded with the colour you want to apply. To make large spots hold the brush near the surface, and with a little experimentation the size of the spots can easily be adjusted.
One very useful process for finishing off plain frames or parts of ornamental ones is to rub on colour. This gives a nice soft finish and it is particularly good for insets, which can look far too hard and glaring against a light toned picture. Any oil based paint call be used and a handkerchief should be lightly smeared with this, and then the surplus paint rubbed off on an old piece of newspaper. The lightly charged cloth is rubbed gently 01, the frame, and the pressure increased until the right effect is obtained. The cloth should be recharged as necessary, but never too much as the more sparingly paint is applied tile softer tile finish will look, and it is not necessary to work it in too evenly. Burnt sienna is a particularly good colour for insets. If you want a simple gilded effect a paste made by Reeves called Restoration or an American product called Treasure Wax Gilt do an excellent job. They come in many roues of gold, bronze or silver, and are very easily applied with a cloth or finger oil to tile cleaned surface. If a bright finish is required, it should be put on fairly thickly and allowed to dry completely before being rubbed down with a soft cloth. This method is by far the best way to touch up any old gilding as the application of gold leaf is really an expert’s job (see Gilding).
heavy piece of chain, are common enough practices with disreputable dealers, but any old frame bought in a junk shop will probably have enough natural blemishes to make this unnecessary, and it all sounds rather too violent. Applications of different paints can make almost any frame look a lot older mid more interesting than it really is. Coats of paint are rubbed oil in, irregular patches and then smoothed down lightly with fine sandpaper. Deep depressions can be left dark, and bright colours should be put on sparingly. Yellow ochre, chrome yellow, raw uniber, venetian red and bumf sienlia, are all suitable colours, and when they have dried out and been sanded down, a thin coat of burnt sienna diluted with turpentine is overpainted, and later spots of gold or silver Restoration or Treasure Gilt call be rubbed oil in small areas, or tile whole frame spattered. The effect of old gold leaf call be obtained by painting the frame with a thick layer of venetian red, and then repainting with a good quality bronze paint such as Treasure Gold Liquid Leaf When it is dry, it should be rubbed with steel wool until the red shows through in places. Restoration wax call be used instead of the bronze paint, just put on rather unevenly, but it must be remembered that genuine gold leaf gets rubbed off in natural wear and tear on the raised surfaces, while tile depressions will keep the gold, and it is not so easy to get a natural finish without any rubbing off.
Mending. Old picture frames get pretty knocked about in junk shops, especially when tile pictures have been removed and tile glass broken. Usually it is the corners which go, the whole frame wringing in all directions. Corners can be strengthened quite easily (see Fig. 17)_ If the glue and the tacks which secure the frame have gone, take the frame to pieces, and remove the remains of the tacks and clean off  Sand the faces of the comers down to the natural wood, so that you have a clean surface to work on, and then put an impact adhesive, on both faces of the comers and leave it for the time specified by its makers before bringing the two faces together. In order to get good right-angled corners, use a comer cramp. These c.-ui be bought at hardware stores and arc so useful that I really do suggest that you get one and do not try to square the comer any other way, although it can be done. One method is to work with the frame on its face. Put the two faces together and square the comer using a try square to measure it and then tack a thin piece of wood diagonally across, so that the frame is held rigid until the join has set. This will hold the corners accurately, but will not put any tension on the join. To hold the comer, in addition to the adhesive, drive tacks in diagonally across the join, making sure that you don’t use tacks so long that they come right and also try to get them into the through the other side, and
thickest section of the frame. Small holes can be drilled across the corner, and a woodc’, peg inserted. If you mean to do this, it is best to drill the hole with the frame held tight in the corner cramp, before putting on the glue.
If it is not possible to mend the frame iri this way, or if you do not want to dismantle it entirely, the corners can be dowelled, or a plate can be screwed on to the corners, at the back. Depending on how big and heavy the frame is, put in a strip or triangular corner plate (see Fig. 17). If a strip is used, sink it into the frame by cutting right across the corner to the depth of the strip with a tenon saw, and then chipping out the piece with a chisel. Wooden strips and plates are better than metal ones, and plywood is fine for the job.
If you wish to make a frame smaller, this can be done without separating all the covers. Measure opposite sides to the correct lengths, at opposite ends, then cut through the two corners using a mitre box, and rejoin (see Fig. 18). When measuring frames, always remember that the edge of the frame overlaps the glass and the picture, and that you must allow for this when measuring. It is easier to measure your picture and/or glass, and then measure the frame at the inside edge of the rebate which takes the picture.
Mending Mouldhnq. If the plaster moulding of a picture franc is really badly damaged, you can always strip it all off and just use the basic wooden frame. A power drill with a rough sanding disc will take off a lot of the old plaster quickly, but some of the awkward angles will have to be done with a hand scraper.
Clean all mouldings with a hog’s hair paint brush, a sponge mid methylated spirit. Never make a frame too wet or the plaster may dissolve.
plaster mouldings are all too often broken off in great lumps. Replace these quite simply by making a moulding from an identical, but unbroken section of the frame. This is done in the same way as pressed moulding for china (see Fig. rg). Make a mould with Plasticine for small sections, and then cast a piece by pouring plaster of Paris in the mould, or preferably for small sections by making a filler with Araldite mixed with kaolin powder (use a parting agent in this case), or Cascamite and dental plaster, and pressing this into the mould. The pressing is allowed to harden and then, before it is so hard that it will not stick, is carefully put in place on the break. A little straight Araldite adhesive on the face of the broken part will help adhesion. To make a mould of a large section, or one which has any undercutting which would hook round a plasticiric pressing, use dental impressioncompound (Paribar) and make a pressed mould with this, first greasing the moulding with vaseline. Paribar can be reused many times, and no parting agents are needed before putting in
the plaster of Paris filler.
Gilder’s Compo can be used (see Fillers) and this is recommended for extensive work. It has many other uses for moulding of all kinds and is the traditional material—superseded, but not necessarily improved upon, by plastics and resins.
The mouldings can also be made in Isopon or Bondapaste filler, which dries much more quickly than Aralditc. It is a matter of personal preference, really. All these materials make mouldings which when set can be cleaned tip with needle files and abraded with glass paper until they are satisfactorily smooth.
ruler with a bevel edge and a Stanley knife (see Tools), and cut the board with a bevel. Special mat trimmers can be bought from artists’ suppliers. The secret is to cut the bevel the same all the way round and to get the comers neat. The knife must be perfectly sharp. It is difficult to stop the ruler from slipping about, and a strip of very fine sandpaper stuck oil will the bottom of it wihelp. The bevel edge can be gilded if liked.
The mat is placed oil the picture, which in turn has been put on a mount which is bigger than the hole in the mat. Photographic mountant is excellent for this job, either the paste type, or, if there is no danger involved in heating your picture, the type which is painted on with a brush and then bonded by pressure with a warm iron.
Mounts arc just pieces of cart{    which the picture is stuck; the mount being big enough to fit the frame exactly.
Linings are rather more complex, and call be most effective, both for bringing a frame down in size, and for making a picture look better. A lining may be just a strip of gilded wood inside the main frame, or it may be a wider inner frame covered with material such as linen or velvet or sheet metal. The wood inner frame is made exactly to fit the rebates of the main frame, and is mitred at the corners. The covering material may be stuck or pinned to the lining. In order to make a neat job at the corners, it is usually best to cover the pieces before joining them.
One last word—always check wire, cord and screws used for hanging up pictures—more often than not the wire is rusted, the string is rotten, and screw rings are rusted or loose. It call be a little disappointing if two weeks later all your hard work oil painting, moulding and mending together with that expensive piece of glass end up in a shattered heap on the floor.

19th Century Mirrors. Wall Mirrors, Picture Frames. ENGLISH WALL MIRROR, ENGLISH GILTWOOD MIRROR, AMERICAN GIRANDOLE

EARLY 19TH CENTURY MIRRORS
MIRRORS, LIKE PICTURE FRAMES, are decorative so are rarely subjected to much wear. As a result, they are often gessoed and gilded. Painted examples from this period also exist, as well as Empire pier glasses, which often have mahogany frames and ormolu mounts.
From the late 18th century larger plates became available, so early 19th-century mirrors with a divided plate became less common. Although not new, convex plates became especially fashionable in Britain and the United States, and were used in dining rooms to give servants an all-round view of the table. The convex mirror plate was usually framed by an ebonized and needed slip with a gilt frame echoing the shape of the mirror. The frame
The acanthus leaves are pierced and scroll-carved.
was often surmounted with an eagle or similar motif and frequently had candle arms attached to it.
Also fashionable was the use of verrc eglomise in which glass was back-painted in black and then engraved with a design before gilding. Verne eglomise plates were frequently inserted above normal plates. Mirrors with a more rectilinear design were also popular, particularly those intended to stand above pier tables between windows. From the late 1820s, revival styles led to the reintroduction of Chippendale-style mirrors in Britain; these are often difficult to distinguish from the 18th-century originals. In Florence, boldly carved foliate frames were introduced in imitation of the Baroque originals.
The guilloche motif is stylized.

ITALIAN WALL MIRROR
This rectangular giltwood wall mirror has a carved softwood frame featuring guilloche and stylized, scrolling acanthus leaves. The whole frame has been covered in white gesso and then given an undercoat of red paint, before
being gilded. The ornate, sculptural form of the mirror frame is reminiscent of the Baroque style of the 17th century, and harks back to the designs of Andrea Brustolon and the work of the Genoese carver, Filippo Parodi.

REGENCY MIRROR
This giltwood mirror has a moulded cornice with ball decoration above a panel with a shell cresting flanked by latticework. Columns flank both sides of the mirror. Early 19th century.
ENGLISH PIER GLASS
With a concave cornice above a ring-and-leaf frieze, this giltwood and gesso pier glass has 11 plates of varying sizes divided by astragals and flanked by half columns.

AMERICAN LOOKING GLASS
This simple, late Neoclassical maple looking glass has a rectangular mirror plate set within a relatively unadorned rectangular frame. The top and sides of the mirror frame have corner blocks joined by half-section balusters with
gilded and moulded ends. Like the mirror above, this type of overmantel mirror is sometimes erroneously referred to as “Adam”, perhaps because of its rectilinear Neoclassical styling, or perhaps because such mirrors frequently featured in Robert Adam interiors. c.1835.

This giltwood and ebonized girandole has a convex mirror plate with a reeded slip. The frame is decorated with carved leaves, has four candle arms, and is surmounted by the Federal eagle. c.1825.
The circular, mirrored plate sits within a reeded ebonized slip and a ball-moulded frame. The frame is surmounted by a dragon flanked by two sea serpents. Below is a leaf-carved apron. c.1815.
This mirror is set within a moulded gadrooned frame, surmounted by a painted figure of Neptune. At the base is a giltwood figure of Triton, and foliate arms that end in candle nozzles.
This simple Regency giltwood mirror has a convex mirror plate within a circular leaf-moulded and reeded border. It might originally have had candle arms or cresting. Early 19th century. Diarn:58cm
ENGLISH WALL MIRROR
ENGLISH GILTWOOD MIRROR
OVAL MIRROR
AMERICAN GIRANDOLE

AMERICAN LOOKING GLASS
This tall, narrow, carved mahogany looking glass frame has a moulded cornice above a veneered frieze. The mirror plate is flanked by projecting blocks linked by carved urns and slender pilasters. c.1825.
AMERICAN LOOKING GLASS
The moulded cornice of this giltwood mirror is hung with ball decoration above a wreath-andacanthus moulded frieze. Below this is a tablet. The colonnettes are rope-turned. c.1800.
IRISH OVAL MIRROR
This oval mirror, one of a pair, has its original plate set within a copper frame, which is decorated with applied, alternating blue and clear crystal facets. Late 18th–early 19th century.
BIEDERMEIER PIER GLASS
The rosewood-veneered frame of this southern German pier glass has an architectural pediment above an ebonized panel depicting the Goddess Diana in gilded brass. c.1820.
AMERICAN LOOKING GLASS
This Classical mahogany and carved giltwood looking glass has an architectural pediment above a carved eagle tablet and a mirror plate flanked by colonettes. Early 19th century.
This carved and gilded looking glass has a moulded, projecting cornice above a carved frieze, with a verre tablet, and reeled pilasters. Early 19th century.
AMERICAN GILTWOOD MIRROR
This Federal mirror has a broken pediment with ball decoration above a verre eglomise panel depicting Hope with an anchor, flanked with festoons. The columns have spiral beading.

Enamelled glass
The process of enamelling has been known since Roman times, and from the end of the 13th century was used to great effect by Islamic glassmakers to decorate mosque lamps. In Europe enamelling first appeared in Venice in the 15th century, and spread elsewhere during the 16th century. In Vienna in the early 19th century beakers were decorated with transparent enamels
in the Biedermeier style by such artists as Gottlob Samuel Mohr and Anton Kothgasser and in the later part of 19th century copies of earlier styles were made by manufacturers all over Europe, the most outstanding of which were Islamic- and Iznik-style wares, which were made in France, and Histortsmus wares, which were produced in Germany.Enamelling
, which can be used to decorate both colourless and coloured glass, was used extensively in Europe from the 16th century. It was employed most notably to decorate armorial wares, but it was also used to create bright and colourful decoration in naturalistic motifs; naive and charming designs of flowers and animals are highly characteristic. On many wares enamelled decoration was used in conjunction with gilding.
ITALY
The invention of cristallo glass c.14.50 by Angelo Barovier (4.1460) provided a perfectly clear ground that was ideally suited to enamelling in brilliant colours. Enamelling, a technique that the Venetians probably learned from Islamic glassmakers, was at its peak in Venice from the 15th to the mid-16th centuries. The process involved applying a thick paste of powdered glass and a colouring metallic oxide in an oil medium to the surface of the glass, which was then heated in a furnace, where the enamel and glass fused. Each colour required a different firing temperature, and the work could easily burn if overfired. Enamelling is a notoriously difficult technique, and most enamelling of this period is
restricted to the borders, with simple scale and dot patterns. On much more sophisticated wares, such as specially commissioned commemorative tazze (ornamental serving dishes), enamelling was often combined with gilding, and decoration included portraits, coats of arms, family and guild crests, and mythological figures. Although enamelling fell out of favour by the late 16th century, it was revived during the second half of the 18th century by Oswaldo Brussa, who, with his son Angelo, decorated clear-glass beakers, carafes, and bottles with birds, flowers, and biblical scenes in a charming and naive style.
GERMANY AND BOHEMIA
In the 16th century enamelling was developed as a popular form of decoration in the regions of Germany and Bohemia. From the mid-16th century German glass decorators, inspired by finely decorated wares from Venice, used brightly coloured enamels to decorate large, simple shapes made from coarse, robust soda glass. The technique was especially popular for decorating traditional drinking glasses or goblets, particularly the Humpen (simple, cylindrical drinking vessels, the foot rims of which are decorated with white enamelled dashes). Variations on the Humpen include the Reichsadlerhumpen (”Imperial Eagle Beaker”), which was designed to toast and show allegiance to the Holy Roman Emperor, and featured the double-headed Imperial eagle with outstretched wings from which hang shields showing the constituent parts of the Empire; the Hofkellereiglas (decorated with armorial decorations), Wilkommhumpen (”greeting glass”), usually of large proportions, and Kurfturstenhumpen (”Elector’s beaker”), decorated with depictions of the Holy Roman Emperor and the Seven Electors of the Empire.
Other German drinking vessels that were enamelled Include goblets and beakers such as the Passglas (a tall cylindrical beaker decorated with horizontal bands, which indicated the amount of beer to be consumed by a drinker before they passed the glass on to the next person) and the Stangenglas (a long narrow beaker on a pedestal base). These wares were enamelled in very bright colours with decoration such as dated armorial and political motifs, Lind designs commemorating guilds and trades.
In Bohemia in the 18th century enamelling was mostly used to decorate flasks, bottles, and tankards made of opaque-white Milchglas (”milk glass”). The white body imitated porcelain, and the decoration featured people, animals, and flowers painted in a naive folk style in bright polychrome enamels.
In the 17th century Johann Schaper (1621-70),
a Hausmaler (”home painter”) based in Nuremberg, developed an enamelling techniques which he used to decorate both glass and porcelain. Schwarzlot (black-lead) enamelling involved decorating glass vessels (mainly tumblers) with black or brown transparent enamel, and was fashionable from c.1650 to 1750. Designs were typically inspired by engravings and depicted battle scenes, landscapes, and mythological subjects.
In the 18th century the popularity of Schwarzlot decoration spread to Bohemia and Silesia. One of the most celebrated exponents of the technique at this time was Ignaz Preissler (1676-1741), a glass and porcelain painter, who used the technique to decorate glass tumblers and flasks with mythological scenes, townscapes, Laub- and Bandelwerk (decoration of interwoven leaves and strapwork), and chinoiserie.
BRITAIN AND SPAIN
Before 17.50 enamelling was relatively rare in Britain. Among the best-known early British enamellers were the Beilby family. In 1760 William Beilby (1740-1819) and his sister Mary Beilby ( 1749-97) moved from Bilston, in Staffordshire, to Newcastle-upon-Tyne, in the north-east of England, where they enamelled wares between c.1762 and 1774. Their most celebrated wares are large pieces, Such as the “Royal Beilbys” – goblets featuring the Prince of Wales’s feathers and made from 1763 to commemorate the birth of the Prince of Wales (later George IV); their armorial goblets enamelled on the howl and commissioned by local families are also of note. Typical decoration includes simple borders of thinly applied white flowers, fruits, hops, and barley; more ambitious designs include Arcadian landscapes, ruins, and even sporting scenes.
Other British decorators who painted with enamels include-80) and Michael Edkins
,James Giles (1718
(173 1 34-18 11). Giles decorated glassware for the Falcon Glassworks (est. 1693) in London. Edkins, who worked
in Bristol, painted opaque white glass, both with chinoiseries and with charming, naive designs of insects, birds, and other naturalistic motifs.
In Spain enamelled glassware was produced most notably at La Granja de San Ildefonso near Segovia. Established in 1728 by the Catalan glassmaker Ventura Sit (d.1755), near the palace of La Granja, the factory employed French and German glassmakers, who brought with them a variety of techniques and styles that gave the glass an international character. Typical wares include glasses and tumblers, and although many were embellished with gilded decoration, enamelled floral designs, notably tulips and roses, were also popular.
Italy
• GLASS cristallo glass is most typical; some wares appear slightly cloudy due to Grizzling
• DECORATION many pieces feature naive folk art designs of flowers or biblical scenes; on some examples enamelling is used in conjunction with gilding
Germany and Bohemia
• GLASS Milchglas should be a slightly off-white colour
• COLOUR earlier, more collectable glass is often a smoky greyish-green colour; most later glass is a strong green
• DECORATION commemorative designs, rustic scenes, and flowers in bright colours arc typical
• CONDITION damage to enamelling can greatly reduce
the value; worn gilding is common but insignificant
• BEWARE be careful with .Schwarzlot glass that features transfer-printed decoration, as many reproductions were made in the 19th century
Britain and Spain
• GLASS glass is mostly clear, or sometimes blue or white
• DECORATION Britain: some wares by the Beilby family feature armorials; many pieces depict charming, naturalistic designs; Spain: floral designs, especially tulips and roses, arc highly characteristic; designs should be neat and well drawn; enamelling is often combined with gilded decoration
• COLLECTING Britain: “Royal Beilbys” and armorial goblets with coloured decoration are valuable and highly collectable
Styles of enamelled glass produced after 1800 are many and varied. In Germanic Europe (a region that included such cities as Prague, Vienna, Copenhagen, and Berlin) the period known as the Biedermeier period (c.1815–c.1848) was one of middle-class prosperity, and this ensured the continued popularity of such decorative arts as glassmaking. Enamelled wares from the early 19th century are typically decorated with topographical scenes, floral designs, and portraits in bright colours. Following the re-establishment of the German Empire in 1871 there was a revival of the production of traditional German styles of glass; this revival is known as “Historismus”. Exceptional enamelled wares were produced in France in the 19th century, notably elaborate Islamic designs and some delicately decorated opaline wares. In Britain enamelled decoration was mainly restricted to monochromatic transfer-printed patterns on opaque white grounds.
GERMANY AND BOHEMIA
During the Biedermeier period Samuel Mohn (1762-1815), a Hausmaler (”home painter”) in Dresden, pioneered the use of a thin, transparent enamel decoration, which he used to great effect on tumblers and beakers. His son Gottlob Samuel Mohn (1789-1825) learned the technique from his father and in c.1811 went to Vienna, where he
met Anton Kothgasser (1769-1851), a painter at the Royal porcelain factory. Both men used the technique to decorate simple, straight-sided beakers and,
from 1814, a type of beaker known as a Ranftbecher, with a waisted or tapered body and a thick cogwheel-cut base. Kothgasser’s enamelled decorations resembled romantic watercolours; his designs included fine landscapes,
cityscapes (particularly of Vienna), portraits, and allegorical and Neo-classical subjects. Mohn used silhouettes and allegorical subjects as decoration but is best known for his tumblers decorated with topographical motifs – palaces, cityscapes, and tourist views; his beakers typically have gilded borders. Other distinguished contemporary enamellers include Carl von Scheidt and Andreas Mattoni (1779-1864), 79-1864), who established a school at Karlsbad where Ludwig Moser (1833-1916) was a pupil.
Following the unification of Germany in 1871, there was a fashion for reproducing “historic” styles to create a sense of national identity; this trend (which also appeared in Italy in the mid-19th century) is known as “Historismus”. Glassware was just one of the media in which designs were reproduced in the “old German” style, characteristically with decorations of spurious crests, dates, and national insignia. There was a flood of traditional German drinking glasses made, including Humpen (simple, cylindrical beakers), Romer (drinking glasses with flared feet, wide cylindrical stems, and ovoid bowls), the Kuttrolf (a type of pouring flask), and other vessels made in imitation of 16th- and 17th-century originals, with false dates and inscriptions. These copies can usually be recognized by overelaborate decoration in bright, inappropriately coloured enamels, fictitious crests, crests of large towns rather than families, and heavy glass that is free from imperfections (early glass is frequently flawed). Wares, which are often of a very high quality and collectors’ items in their own right, may bear enamelled signatures identifying the manufacturer. The leading producers included the Rhenish Glasshouse (1886-92) in Ehrenfeld, Koln-Ehrenfeld, situated on the Rhine, near Cologne, and Meyrs Neffe of Bohemia (1841-1922) in Adolfov, known for producing copies of goblets with Hochschnitt (”high cut”) decoration during the 1890s. Hausmaler who worked on “Historismus” wares include Fritz Heckert, a glass enameller who established a glass-decorating works in Petersdorf, Bohemia, in 1866 and a glass factory in 1889. The company was active until c.1890 and specialized in the production of Humpen, enamelled with designs copied from traditional woodcuts and engravings. The strong Bohemian enamelling tradition was also continued late into the 19th century by such companies as Ludwig Moser & Sons (est. c.1857) in Karlsbad (now Karlovy Vary in the Czech Republic).
FRANCE AND AUSTRIA
In the 19th century French enamellers gained international renown for their fine wares, receiving
commissions from all over the world, particularly
from Arab states, in the Near East. Much French
enamelling was executed on the finest opaline
glass. Some of the best examples arc Vases
decorated with animals, birds, and sprays of
wild flowers. Some of the most impressive,
although quite rare, French enamelled wares
pre produced by Philippe Joseph Brocard
(4.1896) and I.J. Imberton Inspired by 13th-
and l4th-century Islamic lamps, which were
elaborately decorated with arabesques, stylized
scrolls, and floral designs in thick, opaque
enamel, Brocard experimented with this style
from the I 860s. His designs included copies
of mosque lamps, vases, ewers, and dishes;
these pieces, decorated with thick enamelling,
jewelling, and gilding, won first prize at
the Paris Exhibition of 1878. Imberton also
decorated fine Islamic-style wares with stylized
motifs. In Austria the style was taken up by
the glass company of J. &’ L. Lobmeyr- (est. 1823) in Vienna, which designed a range of Islamic style glassware for the domestic and export market, and also won prizes for its Islamic-style wares at the Paris Exhibition of 1878.
BRITAINIn
Britain the firm of W.II.., B. Richardson (est. c. 1836) near Stourbridge, was famous lot- it, high quality wares and patented designs. It produced glass using many patented techniques. One was known as “vitrified colours”, the finest examples of which were shown at the Great Exhibition of 1851 in London. The commercial process involved transfer printing [)lack or coloured designs such as a pictorial scene onto the glasse
hebody
(which was i opaque:), and then firing the design. Sometimes the enamels were hand-painted onto the body, although this is not so common. The firm of Bacchus (est. c.18 16; later George Bacchus & Sons) in Birmingham also produced a series of wares in the 19th century, which were decorated with transfer-printed enamels, most of which feature Neo-classical scenes.

Settles and sofas after 1840
The revival of interest in historical styles from the mid-19th century resulted in a multiplicity of designs for all types of furniture, including sofas, which were often made as part of the new salon or parlour suites. A major technical development during this period was use of the coil spring, patented in 1828, which resulted in sturdier, bulkier, and squatter designs that sacrificed form to comfort. These deeply upholstered seats, with their button backs, culminated in the Chesterfield, which was the first fully upholstered sofa.

Seat furniture
The period c. 1860 to (.1880 was in many ways the golden age of upholstery. Stuffing had been growing steadily thicker from the 1840s, and buttons were introduced to prevent the thread holding the stuffing
in place from pulling the covering material. Extra fabric was necessary to create the familiar diamond pattern of buttons or threads characteristic of the deep, luxurious upholstery, with its air of prosperity and comfort, so admired by the Victorian middle classes. The development of the coil spring made increased demands on buttoning. Whereas sofas had previously been stuffed with layers of wadding and horsehair, coiled metal springs were now used. The springs were supported by a layer of hessian webbing, covered with more webbing, which in turn was covered with horsehair stuffing and padding. As a result, Victorian sofas were much more comfortable than early 19th-century examples, but they were also much bulkier; many sofas had button backs to emphasize the new upholstered look. The luxurious effect was emphasized by the use of velvet and other elaborate fabrics. Sofas with their original worn upholstery arc more collectable today than those with high-quality restoration using an inappropriate fabric.
French sofas were generally lighter in design than British examples, since French craftsmen and manufacturers employed such revival styles as Rococo and Louis XVI, making use of giltwood and lighter upholstery fabrics. In the USA, parlour suites on a grand scale were produced by such leading makers as John Henry Belter (1804-63) of New York, who in the 1850s created laminated and moulded rosewood sofas with deep pierced carving. Renaissance Revival suites, with square-backed sofas, were also popular, while the fashion in Europe and the USA for “Turkish” corners gave rise to over-stuffed upholstered sofas with elaborate fringing.
Edwardian sofas of the first two decades of the 20th century borrowed heavily from Neo-classical styles –especially the designs of Thomas Sheraton (1751-1806) – and from Regency styles, but managed to avoid the excesses of Victorian interpretations. Suites of chairs with matching sofas were produced; these were generally made from mahogany, or occasionally from walnut or satinwood. Sofas and chairs often had caned backs and sides, with silk or damask upholstery.

•    CHALSES-LONGUES these are not particularly commercial as they can be large and not very comfortable to sit on; examples with good shapes are more popular, as are those that are more heavily carved
•    GILDING good-quality regilding is quite acceptable if well executed– the highlights should be burnished, and the quality of the carving evident; beware of spray gilding – this will have a flat, matt appearance, with a very even coverage
•    RE-UPHOLSTERY the condition of the upholstery should be carefully examined, as seating can be very expensive to re-upholster; furniture with taut webbing is
preferable to that with springing, which tends to give an overstuffed look
•    COLLECTING many sofas and settees were originally part of parlour or salon suites, which are now rarely found complete; three-seater examples are generally more commercial than two-seater

Coalport
Today the quiet banks of the River Severn at Coalport, Shropshire, seem an unlikely location for two important porcelain factories: Coalport and Caughley. However, Coalport is close to Ironbridge in an area that once lay at the heart of the 18th-century Industrial Revolution. At the end of the century, the iron furnaces of Coalport were replaced by china works that produced a large amount of good everyday porcelain, especially tea-sets and dinner services. The Coalport factory succeeded by keeping abreast of popular tastes and fashions, and still exists today (although relocated to Stoke-on-Trent).
WHITE COALPORT
John Rose began porcelain production in Coalport c.1796. In 1799 he bought the nearby factory of - Caughley, where he continued to make blue-printed teawares. Early Coalport mostly followed New Hall in manufacturing inexpensive enamelled copies of Chinese patterns, and such teawares sold well at a time when popular Chinese tea-sets were no longer being imported in any quantity. Instead of trying to compete with the rich porcelain of Worcester or Derby, Rose realized that there were many skilled British china-painters working independently, all of whom required a regular supply of
plain white porcelain to decorate. Studios such as those managed by Thomas Baxter in London and George Sparks in Worcester bought white Coalport porcelain and added their own wonderful painting and rich gilding. This accounts for the great variety of decoration found on Coalport porcelain, which causes confusion for collectors. The situation is further complicated by the very similar shapes and designs made by another china factory, located next door to Rose’s and owned partly by his brother Thomas Rose. This operated from c.1800 and was bought by Rose in 1814. Rose is also believed to have acquired some moulds and designs following the closure
following
of the Nantgarw and Swansea factories in South Wales.
CONTINENTAL INFLUENCES
Coalport’s popular Neo-classical and “Japan” patterns gave way c.1815 to the latest French fashion for pretty floral wares using the white porcelain as a ground for delicate gilding. Colourful grounds were introduced
during the 1820s, followed in the 1830s by the creation of frivolous Rococo Revival-style wares inspired by the production of the German Meissen factory near Dresden, and therefore known as “English Dresden”. This style was epitomized by Coalport’s ornamental wares including vases, jardinieres, baskets, inkstands, and pastille burners, typically encrusted with brightly coloured modelled flowers. The term “Coalbrookdale”, applied to this type of porcelain (also known as “English Dresden”), originally referred only to Coalport wares, but today is used more loosely to describe encrusted china made by English manufacturers such as Minton Co. and Samuel Alcock & Co., who based their wares on the same Meissen originals. By the mid-19th Century Coalport many many fine in-house decorators and no longer relied on sending work out to independent artists. The exremely fine work of the bird-painter John Randall (1810-1910), and of William Cook (active 1843-76) who specialized in painting flowers, is unmistakable, and their designs are especially fine when combined with a characteristic turquoise ground.
KEY FACTSBODY
• hybrid hard-paste porcelain until c.1820, when bone china was introduced
• FORMS teawares, dinner services, flower-encrusted ornamental waresDECORATION
Chinese-style enamel patterns; French-style floral designs (c. 18 15); Rococo Revival wares inspired by Meissen encrusted with floral decoration, known as “Coalbrookdale” or “English Dresden” (,-.1830); fine painting and gilding; excellent work by independent decorators including Baxter and Sparks
• COLLECTING it is important to examine the shapes of wares as other factories copied Coalport designs

Porcelain
Hausmaler
From the 17th century in Germany and Bohemia there Was an important industry of freelance artists who decorated faience, to help factories meet the demand for highly decorated pottery. These decorators, known as “Hausmaler” (”home painters”), worked in their own studios or workshops. Additionally, hoping to profit from the new porcelain industry, Hausmaler in Augsburg and elsewhere bought whitewares from Meissen in bulk and decorated them.
AUGSBURG
Hausmaler from Augsburg were among the first to decorate Meissen porcelain outside the factory, and thus their decoration is usually found on tableware of the 1720s. Gilt decoration is particularly associated with the Augsburg workshops and is the most common form of Hausmaler work found today. The best-known and most prolific studio was that of the brothers Abraham and Bartholomaus Seuter (1688-1747 and 1678-1754), who specialized in gilt decoration, particularly chinoiserie scenes in the manner of Johann Gregorius Horoldt ( 1696-1775) of Meissen, and hunting, genre, and mythological scenes set within ornate gilt scrollwork or foliate borders, or reversed on a solid gilt ground.
The other major Hausmaler workshop in Augsburg during the first half of the 18th century was that of the Auffenwerths, who painted chinoiseries in a style that is very similar to the Seuter workshop but which can be distinguished by its more feathery appearance. Sabina Auffenwerth (b.1706) is the best known of the family, for her polychrome chinoiserie panels in the style of Meissen, and genre scenes with large figures, sometimes painted in monochrome black, purple, or red, with the faces and arms highlighted in flesh tones.
OTHER CENTRES OF PRODUCTION
One of the most important Hausmaler in Germany was Ignaz Bottengruber (active 1720-30), who worked in Breslau. His work is characterized by detailed designs, high-quality gilding, and varied and subtle tones. He specialized in Bacchic, hunting, and military scenes framed by rich scrollwork, in addition to mythological and allegorical subjects. Ignaz Preissler (1670-1741), the son of a celebrated glass-decorator, Daniel Preissler ( 1736-1733), also worked in Breslau and later in Bohemia; he painted townscapes, landscapes, chinoiseries, and mythological scenes in black monochrome, known as “Schwarzlot” (”black lead”), or even in red monochrome.
The most prolific Hausmaler workshop of the later 18th century was that of Franz Ferdinand Meyer (active 1747-94) who worked in Pressnitz,
Bohemia. His work is recognizable by a
cool palette dominated by light green
and iron red, broad gilt scrollwork borders, and bouquets of flowers around the borders. The painter
F.J. Ferner (active 1745-50) may
have been one of Meyer’s assistants, because his style is similar. Ferner added enamelled and gilt decoration
of flowers, animals, figures, and trees to pieces decorated in underglaze blue at the Meissen factory.
KEY FACTS
• PALL I 1E monochrome red, purple, or black, and gilding are most typical of Hausmaler wares, but polychrome decoration is also found
• SUBJECTS chinoiseries, large figure scenes, landscapes,
mythological, and hunting scenes
Marks
Pieces decorated by Meyer and Ferner generally have the :Meissen crossed swords mark in underglaze blue; after c.1760 Meissen
introduced the cancelled crossed swords mark on imperfect or blank wares in order to prevent its products from being associated with the work of incompetent decorators

Imari Porcelain
Imari is a port on the eastern coast of the island of Kyushu. The name has become associated with a certain type of porcelain, but it has two different Interpretations, one used in Japan and the other in the West. The Japanese terms Shoki and Ko Imari describe blue-and-white wares made in Arita. However, what is generally known in the West as “Imari” is export porcelain decorated in a palette that usually includes underglaze blue, iron-red, and gilding.
There are also other categories beyond the conventional colour scheme; for or example, “green family” Imari is dominated by green, with red or other colours being used in a minor role. Kenjo Imari (presentation ware) is
- sub-group,
another -group, which uses a similar palette but with a more formal arrangement of panelled zones of colour.
Initially developed in the second half of the 17th century, the Imari style matured c.1800.
The finest examples of the style feature a complex symphony of overlapping geometric or leaf-shaped panels often decorated with conflicting themes, as seen in the vase and cover below. Unfortunately the variety of these anti-rational patterns makes it difficult to categorize and present a chronology for this group of wares. Much decoration appears to be based on brocade a rich silk textile run through with gold or silver thread. The majority of Imari wares are decorative, with pieces intended for display en masse. In the late-17th and 18th centuries the most common objects made were high-shouldered, dome-covered jars, trumpet-shaped beaker vases, and saucer dishes. Tea and coffee wares were alsc produced, but these are scarce.
WEAR AND TEAR
Arita porcelain, particularly blue-and-white and Imari, is generally extremely robust and not easily cracked, unlike its more fragile Chinese counterpart. However, although Arita ware is strong, its softish, pale, greyish-blue glaze may be more easily scratched than that of Chinese wares. Some of the Arita export porcelains have crackled glazes, and an intended purchase must be carefully examined to make sure that the body itself is not cracked.
• PALLETTE the basic Imari palette comprises underglaze blue, which can be an intense, almost black, colour or a pale grey, iron red, and gold; other colours include yellow, manganese brown, green, and turquoise
• P0TTING Japanese porcelain is thickly potted and has a tendency to warp during firing, kiln supports were therefore used under the bases of even relatively small wares to prevent them from saggingCOPIES
• made in porcelain at Meissen and in tin-glazed earthenware particularly at Delft during the first third of the 18th centuryBEWARE
• some late-17th- and 18th-century Imari porcelain wares are inscribed with spurious Chinese reign marks