Posts Tagged ‘kilns’

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.

Meissen
The attempts by Count Marcolini, director of Meissen from 1774, to improve the quality of Meissen porcelain were not entirely successful, and at the beginning of the 19th century the factory was still in decline. There were several reasons for this: competition from other porcelain factories in Europe, mass production, and the effects of the Napoleonic Wars (1799-1815). When Marcolini retired in 18 14, production was at a level j t high enough to keep the factory open.
Until the mid-19th century mass production grew steadily, thus reducing costs and meeting demand. From the 1820s the factory kept pace with new developments by using “round” kilns that led to a fourfold increase in production, and introducing new techniques and products. In the late 1820s gloss-gilding was introduced; this inexpensive method of decoration used gold mixed in a solution, which was applied to the porcelain. The time-consuming method of hand-pressing clay into moulds to produce plates with moulded decoration was replaced by pouring slip into glass moulds. One of the new mass-produced items was the lithophane (a thin, translucent plaque with moulded decoration that can be viewed by transmitted light), made from 1829, featuring religious or sentimental subjects.
The 19th-century international exhibitions popularized both new and historical styles by displaying artifacts from different cultures and civilizations, and manufacturers copied these objects using new techniques. Taste was now led by the bourgeoisie, and manufacturers’ output became more diverse to meet demand. More than one fashion was often popular at any one time, so 19th-century objects often display a bizarre combination of styles. The Biedermeier style was introduced c.1830; wares are similar in form to earlier Neo-classical pieces but are heavier, and have less elaborate decoration, often being painted with topographical views.
From the early 1830s the Rococo style was revived, and Meissen enjoyed a renaissance owing to its re-use from the late 1840s of 18th-century figure moulds. Rococo Revival figures and wares were greatly
in demand and formed the bulk of the factory’s production during the second half of the 19th century. Produced under the supervision of the chief modeller, Ernst August Leuteritz (1818-93), these figures are of Such typical 18th-century subjects as shepherds and shepherdesses, the aristocracy, and allegorical figures of the Seasons and the Four Continents. They can be distinguished from the originals by their hard, shiny gilding, harsh colours, and overelaborate decoration, such as intricate lacework, made by dipping real lace into the paste. The most notable Meissen products in other revival styles made during the second half of the 19th century include plates and cups and saucers of the 1840s, moulded or painted with Gothic arches and tracery patterns, and blue-ground krater vases painted with Classical scenes imitating medieval and Renaissance enamels. From the 1860s large-scale Renaissance Revival vases, often painted with flowers and blue-ground sections and with curling snake handles, became increasingly popular. From the 1870s the factory produced figures in contemporary costume, although these were outweighed by the number of Rococo and Neo-classical reproductions.
KEY FACTS
• BODY pure white hard-paste porcelain with a distinctive hard, glassy glaze
• STYLES Empire, Biedermeier, Rococo Revival, Neo-classical, Renaissance and Gothic Revivals
• PALETTE harsh versions of 18th-century colours, such as a strong pink and a yellowish green; figures covered completely with paint; hard, shiny gloss-gilding
• DECORATION encrusted flowers; topographical views on Biedermeier wares
Example
mythological figure group of a maiden sitting on a Neoclassical stool, binding Cupid’s wings with a ribbon, was
produced using a model that had originally been made by Christian Gottlieb Juchtzer, one of the modellers working at Meissen in the Neo-
classical style during the late 18th century The rather harsh palette, so typical of 19th-century Meissen figures and wares,
is especially
evident in the
red drapery over
the attendant’s
shoulder, which would never have been used on an 18th-century figure.

Qing after 1800
During the Qianlong reign period (1736-95) the directorship of the imperial kilns passed from imperial officials to regional supervisors, and from that time there followed a slow decline in the quality of wares from Jingdezhen in Jiangxi Province. While some fine pieces continued to be made, there was a general tendency to over-elaborate in both form and decoration.
BODY AND GLAZE
The changes in the quality of the material were gradual and, when wares are unmarked, it can be very difficult to distinguish between one reign period and another. The dragon and phoenix wucai bowls, which were first made during the Kangxi reign period (1622-1722), continued to be made right into the 19th century and are a good example of the problem; their smooth bluish-white glaze and neatly drawn enamelling are virtually the same whether they are from the Qianlong or the Jigging reign periods (1736-1820). Without reference to the seal marks, most specialists would be hard put to tell the difference.
There was, however, a perceptible decline in quality during the Daoguang reign period (1821-50), and the inferior quality persisted to the end of the dynasty. The cool and lustrous glaze gave way to a grainy off-white, while the enamels were duller or harsher than their
brilliant predecessors. The decoration of enamelled porcelains was arranged in a crowded or ineffective manner, with over-complicated colour combinations.
STYLES, SHAPES, AND DECORATIVE THEMES The porcelains that had been produced in the 18th century continued to be made in the 19th. They included Ming-style blue-and-white wares such as moon flasks and pear-shaped bottles, as well as large saucer dishes. Likewise, monochromes continued to be produced, notably sang-de-boeuf red, “peachbloom”, and yellow. There were also artistic innovations, among them the production of “medallion” bowls.
• GLAZE marked deterioration in quality from the Daoguang period; “European-green” turquoise wash appears on the inside of many vessels
• DECORATION tendency to over-elaborate, complicated colour schemes and overcrowding; greater use of gilding; introduction of “medallion” bowls and “rice-grain” pierced wares; use of show and other auspicious characters; heavy use of enamels
Reign marks
Reign marks were inscribed on most 19th-and 20th-century domestic, imperial, and export porcelain; the mark shown here is in conventional script for the Guangxu reign period (1875-1908)

Qing before 1800
Following the overthrow of the Ming Dynasty by the Qing Dynasty in 1644, production at Jingdezhen in Jiangxi Province was severely disrupted until 1677, when one of the classic eras of porcelain production began. This lasted until c.1750.
BLUE-AND-WHITE WARES
Blue and white dominated the export market during this period, but these wares were not prominent among the ceramics made at the imperial kilns at Jingdezhen. Before 1800 Qing imperial blue-and-white wares tended to imitate early Ming versions, particularly from the Yongle (1403-24) and Xuande (1426-35) reign periods, with decoration that was carefully spaced. The designs on these pieces are generally formal, measured arrangements showing stylized lotus flowers among scrolling foliage. The blue was applied in imitation of the “heaped and piled” effect that connoisseurs so admired in the early Ming wares. Often the reign mark used on those wares was used again in deference to the earlier period.
ENAMELLED WARES
Enamelled porcelains came into their own during the Qing period, replacing blue-and-white wares as the focus of technical and artistic innovation. The technical advances signalled by the development of famille-verte and famille-rose wares greatly enhanced the decorative possibilities of the medium, while the body had now become so refined and delicate as to be the perfect foil for artistic virtuosity. Increasingly, the white porcelain was not so much decorated as painted in the manner of silk-scroll painting.
The famille-verte palette was first introduced during the late 17th century as a development of the wucai palette. In early famille verte the blue is applied under the glaze in the Ming wucai style, but distinguished from it by a generally brighter palette. In the mature famille verte, which dates from the last years of the 17th century, the blue was applied over the glaze and is transparent. Gold was sometimes applied to famille verte wares of the early 18th century. The designs on these wares tended to be detailed representations of nature, including dramatic rocky landscapes and flowers, or precious objects such as classic vases and items for the scholar’s desk.
The famille-rose palette was created c.1720, at the end of the Kangxi reign period. The palette is named after one of the constituent colours – opaque pink enamel, which was achieved using gold. The palette also includes Lin opaque white and yellow that made blending and shading of colours possible in a way that could not be achieved with the transparent colours of the familleverte palette. This gave rise to the exquisitely refined decoration seen on porcelain of the Yongzheng period, with ink-and-wash-style landscapes or
naturalistic depictions of flowers and fruit
rendered in a painterly style against superbly
clear white backgrounds. Among the most
refined Yongzheng and Qianlong wares are
famille-rose wares known as guyuexuan, which were painted in the imperial workshops. Some of these bear poetic lines or calligraphic designs, and they were copied widely in the 20th century.
MONOCHROMES
In this period monochromes were the ceremonial wares used by the emperor and had to be of the very finest quality. In the early 18th century copper-red glazes, which had been so highly prized in the early Ming period, were reintroduced. However, as a result of a longer firing time, these new colours are not as resonant and fresh as their earlier Counterparts, and they can be distinguished from the originals by the extra laver of clear glaze over the copper red. Copper oxide was also used to make the so-called “peachbloom” glaze, which was introduced at this time and applied to a limited range of small wares intended for the scholar’s table, including water droppers and brush rests. This glaze is characterized by the combination of a pinkish red and a cloudy greenish bloom, creating a colour reminiscent of the blush on a ripening peach.
REIGN MARKS
The practice of marking imperial wares with the name of a reign period was introduced during the early 15th century, and continued to the end of the Qing period. Either four or six (or, in very rare cases, eight) characters were inscribed in underglaze blue, and often enclosed within a double circle. In the Yongzheng period, seal-script reign marks became common, and during the succeeding Qianlong period they were the norm. Conventional script became popular again at the end of the 19th century. Reign marks should not be taken at face value when dating a piece, since it was common practice to inscribe wares with the mark of art earlier reign period, particularly those of the much-esteemed Nling period and especially of Emperor Chenghua (1465-87). This was not so much a question of fraud as of admiration for and imitation of antiquity.
The experimentation with monochrome glazes resulted in many innovative effects, such as the speckled turquoise and dark-bloc “robin’s-egg” glaze, which is thought to have been inspired by the Jun wares of the Song period. The “teadust” glaze is created when iron oxide is underfired, resulting in a mottled green on a yellowish-brown background. The “iron-rust” glaze is
a streaked reddish-brown with a metallic sheen, achieved by cooling the ware very rapidly after firing. The pale-little Clair-de-lone glaze was created by incorporating a very small amount of cobalt blue and was applied only to the most delicate wares.
“ARCHAIC” WARES
The Qing emperors, especially Qianlong, were avid collectors of antiquities, and many Qing imperial ceramics closely imitate ancient models. This is particularly evident in the traditional forms that were favoured, which include pastiches of early bronzes and jades and also of classic ceramics of the Song and Ming Dynasties; some wares were made using a combination of the two forms. The Qing potters also tried to re-create the glazes applied to the archaistic pieces of the Song period; these included thick, crackled glazes used on Guan wares. The Qing copies are generally smoother and shinier than the originals.
Qing reign periods Shunzhi ( 1644-6 1 ) Kangxi(1662-1722) Yongzheng (1723-35) Qianlong ( 1736-95) Jiaqing (1796-1820)
Daoguang ( 182 1 —50) Xianfeng (1851-61)
Tongzbi ( 1862-74)
Guangxu (1875-1908) Xuantong (1909-11 )
• BODY very fine white porcelain
• POTTING extremely neat with smooth, rounded foot-rims, the bases of bowls and dishes arc flat, unlike the slightly convex form of the bases of Ming wares; there are no visible joins on vases and pots
• GLAZES a wide range of innovative glazes appears on monochromes; imitations of crackled Song-period Guan glazes are found on “archaic” pieces
• ENAMELS many colours enhanced with opaque white and yellow in the famille-rose palette, permitting shading and more decorative potential
• FORMS small, fine pieces for delicate porcelains as well as imitations of archaic bronze and jade forms
• Di CORATION blossoming and fruiting branches
rendered in a painterly manner; emblems of good luck, such as the characters sbou (long life) and fu (bat), are often integrated into the designs
Reign marks
Reign marks for Shunzhi and Kangxi are always written in conventional script; for the period of Yongzheng they may be written in the same manner or in seal script; Qianlong, Jiaqing and Daoguang are usually done in seal characters; from the Xianfeug reign onward, marks may be written in either style

Later export porcelain
The loss of imperial patronage at Jingdezhen in Jiangxi Province in 1608 prior to the death of Emperor Wanli (d.1619) encouraged the Chinese potters to seek new markets for their wares. They made dishes to European specifications, introducing new shapes and decorative motifs. They also had an unrivalled artistic freedom, which unleashed a great creativity, while the technical quality of the body and glaze improved noticeably.
TRANSITIONAL WARES
Blue-and-white porcelains of the Transitional period (1620-83) are characterized by the purplish tone of the blue, and by the easy naturalism of the brushwork. Narrative scenes were common, while landscape painting was given unprecedented importance. Colophons were very rarely added, but when they are found they often give details of where the object was produced, which clearly aids the dating of such items. Enamelled Transitional wares are the forerunners of the group of wares known as fanzine verte, and the colours are noticeably bright and clean. The Transitional period also marks the appearance of the first truly European shapes, including table salts, mustard-pots, square flasks, and candlesticks.
EXPORT PORCELAINS FROM JINGDEZHEN
The porcelains produced at Jingdezhen after Emperor Kangxi reorganized the kilns in 1683 are markedly more refined than earlier wares. The potting is economical and neatly trimmed, while the glaze is very thin and glassy. The foot-rims often have a faint amber blush due to oxidization. The blue varies from a silvery hue to an almost purple tone. After c.1730 export wares began to decline considerably; this is evident in the poorly trim med foot-rims and in the presence of sugary kiln grit, as well as in deeper oxidization, and an irregular and bluish glaze.
The range of decorative themes is varied and includes flowers and plants growing among rocks, sometimes enclosed within a fence, especially from the Yongzheng period (1723-35). The landscape designs used during the Kangxi period (1662-1722) have a sense of craggy remoteness, which later gives way to a more comfortable, idealized structure, with pavilioned isles, drifting sampans, and bending trees.
In the early 18th century northern-European clients
began to order dinner services decorated with their own
coats of arms, although the Spanish and Portuguese had ordered individual pieces with arms more than a century earlier. These armorial services were executed in underglaze blue or in the famine-verte palette (green, iron-red, blue, yellow, and a manganese purple). However, the later famillerose armorial services, often embellished with gold, are more numerous; hundreds of thousands of pieces were dispatched each year as wealthy British families ordered vast dinner services.
Europeans commissioned a variety of designs to be copied, sending paper patterns and wooden models to the Chinese. Early during the reign of Qianlong (1736-95), plain, blank porcelains from Jingdezhen were probably sent to be decorated in Guangzhou (later Canton) in Guangdong Province; blue-and-white ware was already fully decorated, as the decoration was underglaze. Their close proximity to the decorators’ workshops enabled East India Company employees to complete their private trade orders quickly and effectively. By comparison with general-trade porcelains, these private orders form a much more interesting and collectable group. In addition to the armorial wares, which are by and large formulaic, there are pieces with designs meticulously copied from European engravings.
By the second quarter of the 19th century tailor-made wares were the exception, and production concentrated on heavily enamelled decorative wares and dinner services. Pink, green, and gold with touches of yellow and turquoise were the usual palette of these later porcelains, decorated in Canton and known as “Canton” wares. The material and glaze are generally of secondary quality, with deposits of sugary kiln grit.
SHIPWRECK CARGOES
Among the many ships carrying tea, porcelain, spices, and silk from China to India and Europe, a number inevitably sank before they completed their journeys. In recent years some of these shipwrecks have been salvaged and their precious cargoes auctioned. They include the Dutch ship Geldermalsen, carrying the so-called Nanking cargo, which sank in 1752 with 25,000 pieces of porcelain intended for sale in Amsterdam and was found in 1986. The Diana, which sank in 1817 in the Strait of Malacca en route to Madras, was salvaged in 1994; just under 24,000 pieces of intact blue-and-white porcelain were recovered from the ship, indicating the popularity of this type of export ware.
SWATOW WARES
Named after the port of Shantou (Swatow), Swatow wares are roughly decorated porcelains made around Chaozhou in Guangdong Province from the mid-16th century for export principally to India, South-East Asia, and Japan. Although wares include blue-and-white and slip-painted pieces, it is the polychromes that are best known. The decoration is executed with great flourish in overglaze red, green, and turquoise, with a sparing use Of black. Forms include plates and dishes, and kendi ritual vessels), while characteristic motifs include the ..split pagoda”. Often red character seals are alternated with cartouches around the edges of these wares.
DEHUA PORCELAIN
White porcelain from Dehua in Fujian Province was produced from the Song period. Ming wares from Dehua have a warm ivory tone, while the Qing wares are usually more bluish, or dead white. The most typical forms of Dehua porcelain (known in Europe as blanc-de-Chine) are hollow figures of Buddhist deities – most notably of Guanyin, goddess of mercy – although in the Ming period figures of the Madonna and Child were also produced for the Portuguese. Small cups decorated with reliefs of blossoming prunus were also exported. Dehua wares are usually signed with a small seal impressed into the back of the sculpture.
YIXING WARES
Yixing wares are red stonewares, made in Jiangsu Province, which were exported to Europe from the mid-17th century until the end of the 18th century. The most commonly exported wares were small teapots and cups, either left plain or decorated with ,garden scenes in relief, or with sprigged decoration such as prunus branches. In the 1670s potters in Delft began to produce a low-fired redware in imitation of Yixing, and from the late 17th century potters in Staffordshire produced a similar ware. A number of small Yixing figures were exported to Europe.
Transitional wares
• BODY greyish-white porcelain
• BLUE rich and purplish, applied in washes
• DECORATION taken from printed sources: narrative scenes and flower studies applied as outlines filled in with a wash, a technique known as “line and wash”
• THEMES narrative scenes taken from literary classics
Kangxi blue-and-white porcelain
• POTTING generally very economical and neatly trimmed around the base
• GLAZE very thin and glassy
• FOOT-RIMS faint amber blush due to oxidization
• BLUE varies from a silvery to an almost purple tone
• THEMES flowers and plants growing among rocks; landscapes
Jingdezhen enamelled export porcelain
• SHAPES many European shapes drawn from silverware or European pottery and porcelain prototypes
• DECORATION translucent overglaze enamels with dominant green in densely meshed patterns; gilding
Dehua wares
• BODY white porcelain
• GLAZE warm ivory (Ming); bluish white (Qing)
• SHAPES tall, hollow sculptures of Buddhist deities, figures of the Madonna and Child, and small cups
• DECORATION reliefs of plum blossoms on cups
• MARKS seal signature on the back of sculptures
Yixing wares
• BODY red stoneware
• GLAZE some figures are covered with a pale-grey glaze
• SHAPES small teapots and cups
• DECORATION relief or sprigged decorations
• COPIES made in Europe in the late 17th century by the Elers brothers in Staffordshire and Arij Milde in Delft