Guan ware: dark gray stoneware body with a lightly crackled, grayish blue celadon glaze. From the Guan kilns near Hangzhou, Zhejiang province
12th-13th centuryChineseBlackened gray earthenware
3rd millennium BCEChineseTerracotta
6th century BCEGreekCeramic
KoreanCeramic
EgyptianTerracotta
Greek