Antique Glass. BOWL IN DARK RED GLASS, ENAMELLED AND GILT, VASE WITH ENAMELLING AND GILDING, GOBLET IN COLOURED GLASS ENAMELLED DECORATION
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.
