by electrical porcelain.

Another type, Flintless Stoneware, has also been identified. It is defined in the UK Pottery (Health and Welfare) Special Regulations of 1950 as: "Stoneware, the body of which consists of natural clay to which no flint or quartz or other form of free silica has been added."

Production

Materials

The compositions of stoneware bodies vary considerably, and include both prepared and 'as dug'; the

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