Plain Tricolor Plate with the Design of Two Dragons Playing with a Pearl on a Yellow Ground

A plain tricolor porcelain ware was made by filling the colors in the carved pattern parts, which was left unglazed, on a biscuit coated with transparent or colored glaze layer that has been fired at high temperatures. The firing process is different from the tricolor pottery made in the Tang dynasty, although both of them are known as “tricolor”. The “plain tricolor” indicates the exclusion of red. The Wanli reign mark in regular script (kai shu) is inscribed on the bottom in blue cobalt color.