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.
