Antique Engraved Glass
Antique Engraved Glass
Engraving, whereby a decorative pattern is finely cut onto the surface of the glass, dates back to Roman times. The very earliest types of engraving were diamond-point engraving, which involves scratching fine lines into the glass with a sharp instrument (usually a diamond stylus), and wheel engraving, where the design is cut into the glass by means of a rotating
wheel. Stipple engraving, a more sophisticated form of diamond point engraving, where patterns of tiny dots rather than lines at used to create a shaded design, was first used from c.1621 acid etching, which involves burning a design out of the top layer of glass with acid, evolved with the invention
hydrofluoric acid c.1770 and was widely used in Britain.
Although glass was engraved from Roman times, and examples of fine engraving exist on 15th–century Venetian glass, the widespread use of such techniques as diamond-point and stipple engraving dates mainly from the second half of the 16th century. These techniques were introduced to decorators in the Low Countries by itinerant Venetian glassworkers. Wheel engraving was first used in Germany in the late 16th century.
DIAMOND-POINT AND STIPPLE ENGRAVING Diarnond-point engraving, in which the design or decoration is scratched onto the surface of the glass by a sharp diamond stylus, is particularly suited to thin-walled glass too hard to withstand wheel engraving. It was the only engraving technique suitable to
be used on delicate cristallo glass. Diamond-point engraving was therefore quite common on 15th-century Venetian and later facon de Venice (”in the style of Venice”) glass. However, the technique did not reach its apogee until it was taken up in the Low Countries during the 17th century, where it was carried out by both amateur (those who decorated glass as a hobby) and professional glass decorators. Anna Roemers Visscher (1583-1651) was an amateur glass decorator in Amsterdam, where she engraved delicate designs of flowers, fruit, and insects, as well as lines of poetry in calligraphic script, on beakers and Romer (a type of drinking glass). Another distinguished amateur glass decorator, Willem Jacobsz van Heemskerk (1613-92), in Leiden, produced most notably free-flowing calligraphic designs on such wares as bulbous serving bottles and jugs. Among the best-known professional engravers was Willem Mooleyser (active 1685-97), from Rotterdam, who used diamond-point engraving on bowls, flasks, goblets, and Romer.
In stipple engraving, which is a development of diamond-point engraving, a stylus is very gently tapped on the glass to make a design built up of small dots; these dots create areas of light (dense areas of dots) and shade (sparse areas of dots) to create the delicate design. The detail may be so fine that the design will Only be seen clearly when the glass is held to the light. Common designs include portraits and allegorical Subjects. Examples of stipple-engraved glass are rare,
as the technique is slow, extremely difficult, and requires great skill and patience.
As with diamond-point engraving, the most notable designs were produced by glass decorators from the Low Countries. Visscher introduced the technique to The Netherlands c.1621, but perhaps the best-known exponent was Frans Greenwood (1680-1761), an amateur glass decorator in Dordrecht who employed the technique exclusively from c.1722. He incorporated floral and fruit motifs and also copied designs from contemporary mezzotints and paintings. One of his followers was David Wolff (1732-98),
), a painter who
produced his own designs and portraits. Some of Wolff’s pieces are signed and his style inspired other artists towards the end of the century; such pieces are commonly known as “Wolff” glass. Another follower of Greenwood was the painter and engraver Aert Schouman ( 1710-92). Greenwood, Wolff, and Schouman all mainly worked on glass thought to have been made in the factories around Newcastle-upon-Tyne in northern England, which made a soft glass that was better suited to the stippling technique than the more brittle soda glass.
WHEEL ENGRAVING
In wheel engraving, a mechanical wheel fed with an abrasive paste (typically a mix of oil and emery) is used
cut a design onto a glass surface. The technique, which has been used since Roman times, is best suited
thick-walled pieces, because the depth of the cut is an essential part of the design. The modern technique was probably developed between c.1590 and 1605, at the court of the Holy Roman Emperor Rudolph 11 in Prague, by the gem engraver Caspar Lehman 15-0-1622), who engraved plaques and beakers with portraits and allegorical subjects.
In Bohemia a new type of glass known as “lime” glass, in which chalk lime carbonate was added to the batch to give a strong, colourless crystal suitable for deep engraving, was developed c.1683. At about the same time water power was introduced to drive the wheels, and this also enabled deeper cutting. Especially notable is the work of Dominik Biemann (1800 1857), whose training at the Prague Academy of Drawing is reflected in his fine engraved portraits on beakers and medallions. Of particular note are the Baroque pokals lidded goblets) decorated with Hochschnitt (”high cut”) engraving by the Silesian Friedrich Winter (d.C. 17 12). One of Lehman’s pupils was Georg Schwanhardt the Elder 1601-70), who left Prague for Nuremberg where he established a workshop and founded a dynasty of skilled engravers, including his son Heinrich (1624l
The technique was further developed in the 19th century, as Bohemian craftsmen pioneered a process whereby glass was overlaid with a layer of glass in a different colour and then wheel engraved to show the design in the colour of the first laver. Two lavers of glass were standard, but sophisticated pieces were composed of up to four layers. Such pieces demanded great expertise, as each coloured layer cooled at a different rate, and with each additional colour the risk of cracking increased. Common decoration included forest and hunting scenes, rural views, and castles. However, most sought after are special commissions such as portraits of famous people, battle scenes, and important buildings. Highly skilled Bohemian craftsmen travelled across Europe, so many pieces of this type were produced in various countries.
Towards the end of the 19th century some fine wheel-engraved pieces with Hochschnitt and Tiefschnitt (incised or intaglio) decoration were designed by J. & L. Lobmeyr (est. 1823) in Vienna. The firm produced copies of 18th-century designs and worked in Classical and contemporary styles. Leading engravers who worked for Lobmeyr included Karl Pietsch ( 1826-83), Peter Eisert ( 1828-94), and Franz Ullmann (1846-1921 ).
Engraved glass was also produced in Sweden. In the 20th century some outstanding pieces were made at the Orrefors factory (est. 1898) in Orrefors, in the Sul Aland region. In 1916 Simon Gate ( 1883-1945) was brought in as a chief designer, and he was joined the following year by Edvard Hald (1883-1980). Gate’s designs typically feature elegant Neo-classical figures,
while Hald’s figures are more caricatured and are mostly shallow engraved. Between 1928 and 1941 Vicke Lindstrand ( 1904-83) also worked for Orrefors, producing stylish and elegant designs.
Diamond-point and stipple engraving
• CONDITION diamond-point engraving should be shallow, with ragged, slightly broken lines, minor damage will not greatly affect value of early pieces
• BEWARE copies were decorated by
enthusiastic
amateurs in the I 9th century; when dated there is no Confusion, but undated older glasses can be misleading
Marks
Diamond-point pieces may he signed on the foot or in the design
Wheel engraving
• TYPES OF GLASS 19th-century Bohemian coloured glass Was a popular base; this glass should feel heavy
• DECORATION late 18th-century pieces feature formal designs; heavy, ornate engraving is typical; high-quality pieces have elaborately cut, ornate feet