Pyrometer

Stoneware pyrometer with pyrometric clay cylinders in a wooden box, by Josiah Wedgwood and Sons, c. 1800, one of a collection of specimens illustrating the manufacture of Wedgwood pottery from Etruria, Staffordshire, given by Josiah Wedgwood & Sons in 1856

Clay / sample

Sample of porcelain clay, from a collection of raw and manufactured products acquired at the Great Exhibition of the Works of Industry of All Nations, London in 1851: China, Jingdezhen