Yellow Ruyi Sceptre with Dragons, Bats, and a Crane, anonymous, c. 1875 - c. 1899
From the 15th century yellow enamel glazes derived from iron were made in Jingdezhen. This opaque, brilliant lemon tone is obtained by mixing a lead antimony enamel with a considerable quantity of zinc. This was a difficult and dangerous procedure as the glaze was poisonous.