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During the late 18th century Richard Champion, a Bristol merchant and potter, making Bristol porcelain, was working with a chemist, William Cookworthy. [1] Cookworthy began a search for good quality cobalt oxide to give the blue glaze decoration on the white porcelain and obtained exclusive import rights to all the cobalt oxide from the Royal Saxon Cobalt Works in Saxony. [2]
The famille verte enamels may be painted on the biscuit (unglazed pre-fired ware) with no underglaze blue, or over high-fired glaze, producing wares of different appearances. Wares with enamel painted on the biscuit usually have a solid-colour ground such as yellow, black or green, while those painted over the glaze may have a white ground.
Cobalt glass—known as "smalt" when ground as a pigment—is a deep blue coloured glass prepared by including a cobalt compound, typically cobalt oxide or cobalt carbonate, in a glass melt. Cobalt is a very intense colouring agent and very little is required to show a noticeable amount of colour. Cobalt glass plates are used as an optical ...
Read more The post 10 Charming Vintage Cookie Jars That Are Worth Top Dollar appeared first on Wealth Gang. ... A version with a red cloak recently sold for $3,500, while one with a green coat ...
Shawnee Pottery, an American pottery company that operated from 1937 to 1961, is known for its eye-catching designs. Glazed inside and out, some Shawnee jars — like this Shawnee cottage cookie ...
Through the Yuan and Ming dynasty, Imperial porcelain was produced with red oxide under glazes and more popular cobalt blue. [10] Cobalt blue underglaze porcelain was adopted into the imperial style for both domestic production and Chinese export porcelain under the Yuan, Ming and Qing dynasties. Until late in the Xuande period the cobalt was ...
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