Shonzui （祥瑞）
Shonzui is Chinese porcelains with underglaze blue decoration created in a non‐imperial kilns in Jingdezhen, Jiangxi, during Chinese late Ming and early Qing dynasties
Compared to Kosometsuke, Shonzui was used high-quality womb soil and pigments and carefully write patterns in a neat shape.
The origin of the name Shonzui is that, in one theory, the inscription of some works says "Goro taiho goshonzui zo". It is said that this was made by "Shonzui", the eldest son of the fifth son of the "Go" family.