Clay hammer shed. Clay hammers.
20th c Chinese Song Industrial Arts
SONG DYNASTY Anonymous (aka Sung Dynasty)
(960 - 1276)
Jingdezhen. Jiangxi Province. China
These clay hammers were formerly powered by water wheels located in a stream near the clay hammer shed; and pulverized the 'porcelain stone' to powder before modern machinery came into use.(Studio Potter Magazine1998 retrieved from http://studiopotter.org/articles/?art=art0014)