Glass - European - Danish & Norwegian

Holmegaard flask In 1741 King Christian VI of Norway and Denmark commanded the establishment of a glassworks at Nostetangen (in Norway) to meet the needs of his kingdom. After some years of experimental work, in 1760 the Nostetangen was granted a monopoly and the import of foreign glass was banned. From 1760 to 1770, two types of glass were made: cheap, poor quality German-style soda-lime glass and very fine quality English-style lead glass. The latter proved very popular with the rich merchants who traded with England and were familiar with English taste.

In 1777, production was transferred from Nostetangen to Hurdals Verk. The technical quality of the glass improved and wide use was made of coloured glass - particularly blue.

In 1809, production was transferred from Hurdals Verk to Gjovik Verk. The products of Gjovik Verk are almost indistinguishable from those of Kosta at the same time.

Denmark’s own production of glass began in 1810 with the establishment of the Holmegaards Glasvaerk.
 

Read the rest of this entry »

 
 
 

Glass - European - Swedish

The earliest Swedish glass was made at the Kungsholm Glasbuk which opened in 1676. The pieces produced were Venetian in flavour and highly ornate - often with stems formed from the royal initials, crowns used as handles and engraved coats of arms.

In the eighteenth century, a Bohemian influence was introduced with thicker glass, shorter stems and less elaborate decoration.

1920s Orrefors glass
Modern Orrefors glass In 1691, a second Swedish glassworks, Skanska Glasbruket, was established to produce utilitarian glass. From 1715, decorative glass was also produced. This used thick, clear glass in simple shapes decorated with engraving which, despite using heraldic motifs, has the character of folk art.

The third Swedish glassworks, Kosta, was founded in 1742. It produced unpretentious pieces for daily use. Over the years, workers from Kosta broke away to form new glassworks in the same district. These included Orrefors and Strombergshyttan. These three remain among the finest manufactories of modern glass.
 

Read the rest of this entry »

 
 
 

Glass - European - Paperweights

Glass paperweights have been a popular collectable for well over 200 years.

A particular style is the millefiori in which coloured glass rods are set into clear molten glass to form patterns of flowers, fruit or abstract shapes. This style was developed in the 18th century by Venetian glass makers and the art peaked around the 1850s.

Scottish millifiori paperweight

Clichy paperweight Many paperweights are round but other shapes such as mushroom and tiered are also popular.

Older glass paperweights may be heavier than later items as the glass as the glass contained a percentage of lead oxide.

The weights from the French factories of Baccarat (founded in 1764), St Louis (founded in 1767) and Clichy (founded in 1837) are highly prized. Similar styles were made by early in the 19th century by American companies.

In choosing a paperweight, always avoid chipped and cracked weights and choose those where the design is centred within the glass.

Baccarat paperwight

Read the rest of this entry »

 
 
 

Glass - European - Lalique

Lalique vase Rene Lalique was born in France in 1860. He trained as a silversmith but, at an early age, discovered a talent and passion for sculpture and jewellery design in many other materials. Lalique was a major force in the art nouveau movement, introducing novel themes and materials into his work. These included the use of horn, amber, mother-of-pearl,, ivory and glass in combination with rare gems to produce works often modelled on maidens or grotesque, half animal, half human creatures.

As well as jewellery, Lalique produced furniture, painting and frescoes but, from about 1890, he became increasingly interested in glass. After about 1910, he gave up jewellery to concentrate on working in glass. Lalique’s early glass works, made between about 1903 and 1913, were made "circe perdue" (that is, the mould was broken to retrieve the glass). These works are rare and extremely valuable. Lalique vase

Read the rest of this entry »

 
 
 

Glass - European - French

During the Middle Ages, the French created unsurpassed stained glass windows, and from the late seventeenth century they were the leading mirror makers of Europe; but, for vessels, glass was considered unworthy of serious artistic treatment.

A strict customs barrier imposed in 1830 encouraged the development of French art glass. From 1830 to 1870 most of the glass production was experimental in character with attempts to emulate the then-popular coloured Venetian and Bohemian glass.

A main product of this period was the paperweight with inlaid colour patterns. Although originated in Venice, this form was perfected at the St Louis glassworks. There were soon many imitators but few could equal St Louis and the nearby Baccarat and Clichy glassworks.

From 1870, new styles were inspired by the Arts and Crafts Movement in Britain and, from 1890, culminated in the Art Nouveau works of Galle and Lalique.

Vase by Galle

Read the rest of this entry »

 
 
 

Glass - European - Austrian (Jugenstil)

In the late 19th century, when the Art Nouveau movement was sweeping France, Britain and America, a similar movement known as Jugedstil (literally "youth style") swept Germany and Austria. Its most brilliant flowering was in the Austrian glass design between about 1870 and 1900.

Reacting against what were seen as stereotyped designs in Bohemian glass, Jugendstil craftsmen experimented with the nature of glass - particularly its malleability when heated and its translucent properties.

Loetz vase

Loetz shell (1898) A number of techniques were used to create original works of art. These included the iridescence produced by coating the glass with a metal oxide and heating it in a furnace, cased glass made with two or more layers of differently coloured glass, cameo glass made by cutting or etching cased glass and combed glass in which threads of molten coloured glass are dragged across the surface to produce a marbled effect.

The best known of the Austrian glassworks is Loetz, which is noted for its iridescent glassware, particularly that produced in the 1890s, and J & L Lobmeyer, which pioneered the commercial production of iridescent glass in the 1860s.

Read the rest of this entry »

 
 
 

Glass - European - Bohemian

The first country to seriously challenge the domination of Venice in glass making was Bohemia. The area was ideal for glass making because of its white sands and dense forests for fuel and potash.

In about 1670, Henry Lehman perfected a method of etching glass with fluoric acid so that the ornament showed smooth against a dull ground. Later in the same decade the famous Bohemian ruby glass was perfected by Johann Kunkel in Potsdam, The intensely strong colour was obtained with the recently invented gold chloride.

ohemian glass

Then, in 1680, a Bohemian glassmaker produced a glass of greater clarity by replacing soda with potash and adding chalk. This Bohemian crystal glass was thicker, heavier and more resonant than Venetian glass. This made it suitable for cutting in the same way as rock crystal. Landscapes, sporting scenes, flowers, animals and coats-of-arms were among the many decorations carved on the glass. The most typical is a scene of stag hunting through the forest. By the end of the 17th century, engraving had supplanted almost all other forms of decoration on glass.

Bohemian glass was considered the finest in Europe until the 1730s when English flint glass, which had the power of dispersing light, superseded it. Bohemian glass continued to be manufactured and exported throughout the eighteen century because of its lower price than the English glass.

Read the rest of this entry »

 
 
 

Glass - European - Venetian

Tradition holds that, after the fall of the Roman Empire, glass makers were among the refugees from the Gothic invasion of Italy in the fifth and sixth centuries AD who founded the city of Venice.

The earliest record of glass being made in Venice of a "phial maker" named Domenico who lived there in 909. By 1255 there were enough glass makers in Venice to form a guild. In 1291 the city authorities became so concerned about the risk of fire from the growing number of glass foundries that they ordered that they should all be transferred to the island of Murano, where they have been located ever since.

Very little Venetian glass made before the fifteenth century has survived. By the 1450s, Venice was producing mainly dark-coloured vessels similar in shape to the silver vessels of the time. These were delicately painted with mythological figures, portraits, coats-of-arms or designs of dots and semi-circles in bright colours.

Venetian glass cup

Read the rest of this entry »

 
 
 

Glass - Australian

The first glass maker in Australia was Simon Lord who began blowing glass bottles in Sydney in 1813. However an industry was not established until 1872 when Andrew Felton and Frederick Grimwade established the Melbourne Glass Bottle Works (later ACI).

Carnival glass was produced at the Crystal Glass Works in Sydney from 1924. Uniquely Australian designs were produced in order to compete with the cheaper American product.

 

Australian carnival glass   Australian carnival glass
Australian carnival glass

Read the rest of this entry »

 
 
 

Glass - American

The first successful glassworks in America was established in 1739 by Caspar Wistar in southern New Jersey. There are no positively identified "South Jersey" pieces remaining.

Henry Stiegel established three glassworks in Pennsylvania. The first made bottles and window glass from 1763. The second added some tableware to the range from 1765. The third, from 1769, was the first American glassworks to specialise in tableware. Steigal produced copies of Bohemian glass for sale to the local Pennsylvania "Dutch" (who were actually German migrants) and copies of English glass for sale in New York and Boston. Steigel’s glass is almost indistinguishable from the European originals but proved too expensive. His glassworks closed in 1774.

Mary Gregory glass (1880) Despite many attempts, There was little important glass production in America from this time until after 1824. In that year, glass was given tariff protection. This was increased in 1828 and 1832.

From about 1815 to 1830, "blown-three-mould" glass was popular. This was imitation cut glass produced in a three- part mould.

The first successful flint-glass factory was Bakewells, established by Benjamin Page and Thomas Bakewell in Pittsburgh in 1809. The factory made English-style cut and engraved glass. In 1825, John Bakewell obtained a patent on machine pressing of glass. By the middle of the century his machine had made mass production possible. By 1852, the price of glass had dropped so much that its consumption had increased ten-fold.

Read the rest of this entry »

 
 
 

Glass - Irish

Flint glass was made in Ireland from the 1690s. This imitated the English style and much of it was exported to England until prohibited by the Excise Act of 1745. Within ten years, all production of fine glass in Ireland had ceased.

In 1780, the prohibition was removed and several glasshouses were established in Ireland - notably at Waterford, Dublin, Belfast and Cork. These produced flint glass, mainly for export to the Continent and America at much lower prices than English glass.

Until about 1800, this Irish glass had a slightly dusky tint. More efficient furnaces were then installed and a clearer glass, which proved ideal for deep cutting, was produced.

Waterford crystal

Read the rest of this entry »

 
 
 

Glass - Islamic

Glass making in Europe made no advances for almost a thousand years after the fall of the Roman Empire. But in the Middle East, particularly in Syria, the industry remained active.

With the establishment of the Islamic Empire in the seventh century, an Islamic style developed. In the eighth and ninth centuries, engraved and cut decoration was used. From the thirteenth century, a characteristic Islamic style of enamel painting, frequently with inscriptions in red, blue and white, appeared. Lamps, tall, narrow beakers and long-necked bottles were the most common items.

Syria remained an important centre but glass wares were also made in Egypt, Mesopotamia and Persia. In Egypt, heraldic motifs, such as cups or eagles set in medallions, were often included in the decoration along with the script used elsewhere.

Syrian glass lamp (14th century)

Read the rest of this entry »

 
 
 

Glass - Early

The basic components of glass are silica (sand), soda (or potash) and lime. The silica, when melted by heat, forms the glass; the soda acts as a flux to allow the glass to melt at a lower temperature; and the lime is a stabiliser.

The combination can be modified. Lead oxide used as the flux makes the glass less brittle and more stable but harder to work when hot. Various oxides and silicates add colour. Tin oxide makes the glass opaque.

By 2000BC, Egyptian craftsman were skilled at making glass articles. They developed four techniques:

  • Glass jars were moulded around cores of mud or straw. This technique was common by the 18th Dynasty (1567-1320 BC). This technique can produce objects formed from bands of coloured glass.
  • Glass was cooled and then carved and polished to the desired shape. The glass was often coloured to resemble a semi-precious stone. This technique was known for many centuries but became widespread in the eighth century BC.
  • Molten glass was poured into a mould. Sometimes a ground paste of glass was poured into a mould and then melted.
  • Small pieces of glass were laid together into a mould and fused together by firing.

Read the rest of this entry »

 
 
 

Glass - History

Key Dates in the History of Glass

2000BC Egyptian glass making
100BC Syrians invent glass blowing
1255 Venetian glass makers guild
1291 Venetian glass making moved to Murano
c1500 Venetian "cristallo" & filigree glass
c1500 to 1600 Venetian "golden age"
1575 Anglo-Venetian glass
c1670 Lehman etches with fluoric acid
1674 Ravenscroft develops flint glass
1675 Ravenscroft develops lead crystal
1676 Ornate Swedish Kungsholm glass
c1680 Bohemians produce clearer glass by replacing soda with potash
c1700 Venetians turn to bright colours and bizarre designs (to c1800)
1715 Swedish Skanska decorative glass
1734 Perrot furnace eliminated dark tinge in English glass
1742 Swedish Kosta glass
1745 Double annealing gives more brilliance
  Shallow cutting possible
  Pontil mark sometimes removed
  Bristol blue glass
1760 to 1777 Norwegian Nostetangen glass
1777 to 1809 Norwegian Hurdals Verk glass
1780 Annealing improvements allow deep cutting
  Pontil mark always removed
1780 to c1850 Irish glass exported
1788 Nailsea wares produced from bottle glass
c1800 Dusky tinge eliminated from Irish glass
1802 New furnaces produce more crystalline English glass
c1804 Bohemians produce black glass
1810 Danish Holmegaard glass
c1815 Coloured glass fashionable
1815 Bohemians overlay glass
  American blown-three-mould glass
1825 American glass pressing machine
c1830 Bohemians glass marbled in strong colours
1845 French paperweights produced at St Louis
c1850 Venetians revive traditional designs
c1870 to c1900 Mary Gregory style popular
1890 Art Nouveau works by Galle, Lalique and Tiffany
1908 to 1930 American carnival glass
1924 Australian carnival glass