Wednesday, May 13th, 2009
Porcelain
Plymouth, Bristol, and New Hall
English porcelain belonged to a type known technically as soft-paste, or “artificial”, porcelain, which lacked the beautiful hard whiteness of hard-paste porcelain such as that produced in China or at Meissen. However, the chemist William Cookworthy (1705-80) believed that hard paste could be made in Britain and searched for suitable raw materials. Kaolin (china clay), the essential ingredient in true porcelain, had been discovered in Cornwall in 1745, and Cookworthy patented several formulas containing this mineral to make what he believed to be the finest English porcelain.
PLYMOUTH AND BRISTOL
From c.1768 Cookworthy produced England’s first commercial hard-paste porcelain at his Plymouth works, but it was dogged by serious problems. A pure white glaze was rarely achieved – the creamy surface was frequently covered with black specks that gave it a dirty appearance. Like Meissen and other European makers, Plymouth experienced difficulties with its underglaze blue, which almost turned black, with severe blurring. Painters from Worcester were attracted to Plymouth, and the factory’s shapes and Oriental designs closely follow those of Worcester. Few collectors will admit that Plymouth was a failure, but when Cookworthy moved to Bristol in 1770 he had little of any real quality to show new investors.
The porcelain made by Cookworthyat Bristol was probably identical to his Plymouth wares, and it seems likely that much of the porcelain today called “Plymouth” was really made at Bristol. Improvements were made: John Toulouse, a modeller at Bow, came via Worcester and introduced new shapes and figures, mainly direct copies of the latest patterns of Meissen’s “Academic” period (1763-74). Bristol sometimes marked its wares with a copy of the Meissen crossed swords, a feature that often confuses present-day collectors – particularly since Bristol porcelain achieved a whiteness similar to that of Meissen after Richard Champion (1743-91) took over Cookworthy’s patents
in 1774. Champion made some beautiful porcelain, especially in the Neo-classical
style, but never in any great quantity because the works continued to be plagued by firing difficulties, notably “wreathing” – spiral ridges
on the surface caused by kiln distortion. Plates and dishes were placed on clay supports during firing to prevent warping. The factory closed in 1781.
NEW HALL
Despite the failure of Bristol, Champion still saw a future for English hard-paste porcelain and visited Staffordshire to try to sell his patent. A consortium of manufacturers showed an interest but realized
that Champion’s formula had to be adapted for mass production. As the New Hall Co., the consortium opened a factory c.1781 at Shelton to exploit an improved version of Champion’s porcelain body – the type now known as “hybrid hard paste”. The glaze tended to be greenish-grey, but it could be potted very thinly, and wreathing was a less severe problem. The factory was designed to make a profit and aimed its products at a mass market, ignoring more expensive pieces such as ornamental figures and vases. Tea and coffee services in a limited range of patterns comprised the bulk of New Hall’s output. Other factories, also concentrating on teawares, were established in competition, and each firm produced its own version of standard shapes – it is therefore important for collectors to learn the differences. New Hall continued into the 1830s, although its later products are not as collectable.
Plymouth (c.1768-70)
• BODY hard-paste porcelain
• GLAZE a pure white glaze was rarely achieved, because the creamy surface was frequently covered by a smoke of black specks that gave it a dirty appearance
• UNDERGLAZE BLUE almost black, with severe blurring
• DECORATION Oriental patterns following Worcester
Marks
This alchemical sign for tin (which was the main industry in Cornwall) was sometimes used
Bristol (1770-81)
• BODY hard-paste porcelain; very white after 1774
• FEATURES “wreathing” – ridges spiralling around the surface – can often be seen on cups and other hollow shapes owing to firing difficulties
• STYLE Neo-classical, continental
• DECORATION inspired by Meissen “Academic” wares
Marks
Mark in blue enamel, sometimes accompanied by numerals; Meissen crossed-swords mark also copied
New Hall (c.1781-1830s)
• BODY hard-paste porcelain, thinly potted
• GLAZE thick, dull, and greenish grey
• FORMS specialized in tea and coffee services aimed at the mass market; other items are extremely rare
Marks
Pattern numbers were introduced to enable customers to reorder easily, and these help with identification
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Tuesday, May 12th, 2009
Bow and Longton Hall
British 18th-century porcelain factories followed their own paths and often aimed their products at very different markets. The proprietors of Bow, to the east of London, responded to the metropolitan demand for Oriental porcelain, which it closely imitated. Longton Hall, in rural Staffordshire, was far removed from the changing fashions of London and produced very individual porcelain with a charm of its own.
Meissen figures, although in comparison with the elegance and sophistication of Chelsea figures, those produced by the Staffordshire workmen hired by Bow were clumsy – as typified by the work of the “Muses Modeller”, an unknown sculptor, whose work, however,
has a distinctive rustic charm. The bright colours on later Bow figures, combined with a strong underglaze blue, resulted in highly decorative ornaments that sold well at the time. The Bow factory remained in production for nearly 30 years but fell victim to an economic recession in the mid-1770s, when figures became unfashionable and the Rococo style that so suited Bow gave way to the Neo-classical taste. The factory closed in 1776.
LONGTON HALL
William Littler (1724-84) founded the Longton Hall factory c.1749 and developed his first porcelain recipe just ust prior to 1750. This porcelain had a thick, semi-opaque white glaze that has earned the nickname “snowman class” for early Longton Hall figures. By c.1752, however, Littler had perfected his formula to produce porcelain that could be moulded quite thinly –ideal for making the forms such as fruit, vegetables, and leaves that dominated Longton Hall’s characteristic, brightly painted dishes, jugs, and tureens. The figures, which are not dissimilar from those of Bow and Derby, show the influence of Meissen. The variable quality of Longton Hall porcelain, coupled with heavy kiln losses, led to the factory’s bankruptcy and closure in 1760. Littler moved to Scotland, where he later opened a new porcelain works at West Pans, near Musselburgh.
BOW
The discovery of Bow’s porcelain recipe resulted from years of experimentation by the potter Edward Heylyn (1695–c.1758) and the artist Thomas Frye (1710-62). They took out their first patent for a porcelain formula c.1744, but Bow porcelain was probably not on sale before 1748. In 1750 the factory was styled “New Canton”, and the influence of China and Japan dominated Bow’s useful wares. Bow porcelain was coarser than hard-paste porcelain and less durable
than that invented a few years later at Worcester, and the burnt animal bones (bone-ash) used as a principal ingredient at Bow created a body that was liable to stain. Competition from rival makers who used
soapstone in their porcelain led Bow to turn its attention to ornamental wares, especially figures. Bow followed the successful example of Chelsea in copying Bow
• BODY soft-paste porcelain containing bone-ash; coarser than true porcelain and liable to stain
• GLAZE soft and slightly blue with a tendency to pool around the base
• DECORATION underglaze, powder-blue ground; blanc-de-Chine sprigged prunes blossom; Kakiemon palette; the “quail” pattern (two quails with rocks and foliage), which became Bow’s most popular design
• FIGURES press-moulded rather than slip-cast, and therefore rather heavy; early figures left in the white, later examples decorated in colourful enamels
Marks
Early Bow is generally unmarked, but after c.1765 this “anchor and dagger” mark was painted in red enamel on colourful pieces that were possibly decorated outside the factory
Longton Hall
• BODY soft-paste porcelain; sometimes, like Chelsea, the body contains “moons” – tiny air bubbles that appear as pale spots against a strong light
• STYLE the factory specialized in colourful jugs, dishes, and tureens in the form of leaves, fruit, and vegetables
• DECORATION Meissen-style flowers are attributed to an artist known as the “trembly rose painter”, although many artists painted in this manner
Marks
No mark was used; pieces marked with two crossed “L”s in blue, formerly attributed to the factory, are now known to come from Littler’s later venture at West Pans
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