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20th-century Jingdezhen ware, with factory mark: 中国景德镇 ("China Jingdezhen") and MADE IN CHINA in English. A factory mark is a marking affixed by manufacturers on their productions in order to authenticate them. Numerous factory marks are known throughout the ages, and are essential in determining the provenance or dating of productions.
There are three types of marks used by stonemasons. [1] Banker marks were made on stones before they were sent to be used by the walling masons. These marks served to identify the banker mason who had prepared the stones to their paymaster. This system was employed only when the stone was paid for by measure, rather than by time worked.
Jasperware, or jasper ware, is a type of pottery first developed by Josiah Wedgwood in the 1770s. Usually described as stoneware , [ 2 ] it has an unglazed matte "biscuit" finish and is produced in a number of different colours, of which the most common and best known is a pale blue that has become known as " Wedgwood blue ".
One such symbol combined the mystical "Sign of Four" with the merchant's name or initials. The "Sign of Four" [ 9 ] was an outgrowth of an ancient symbol adopted by the Romans and by Christianity, Chi Rho (XP), standing for the first two letters of Christus in Greek letters; this was simplified to a reversed "4" in medieval times.
Some researchers, such as Milutin Garašanin [sr; fr] and Dragoslav Srejović, have suggested that the symbols were potters' marks or owners' marks, meaning "this belongs to X". [ 18 ] [ 7 ] Some symbols, principally those restricted to the base of pots, are wholly unique and such signs may denote the contents, the provenance or destination, or ...
Collection of Staffordshire figures in a museum in Delaware, US [1]. Staffordshire figures are a type of popular pottery figurine made in England from the 18th century onward. . Many Staffordshire figures made from 1740 to 1900 were produced by small potteries and makers' marks are generally abs
Linthorpe Art Pottery can have up to four identifying marks. Firstly, the factory mark, of which there are several variations, the earliest of which was the work Linthorpe impressed, this was latterly combined with the shape of mould number one, with this being registered on 14 November 1882 as a Trademark. A slight variant of this mark was ...
A small mark applied to the underside, the back, of articles to give information such as the identity of maker. Various techniques to apply the stamp exist. Ball clay A secondary clay. Ball clays invariably also contain various non-clay minerals, and sometimes organic matter. They commonly exhibit high plasticity and high dry strength.( Ball mill