irregular: 5 cm (1 15/16 in.)
Terracotta
5th-3rd century BCEGreekTerracotta
Guan ware: dark gray stoneware body with a misfired or degraded grayish green celadon glaze. From the Guan kilns near Hangzhou, Zhejiang province
12th-13th centuryChineseBlackened gray earthenware
3rd millennium BCEChinesePainted funerary ware: gray earthenware with cold-painted red pigments on a white gesso ground.
ChineseCeramic
EgyptianCeladon ware: light gray stoneware with celadon glaze
12th-13th centuryKoreanCeramic
KoreanTerracotta
RomanPorcelain with decoration in underglaze cobalt-blue
17th centuryJapaneseTerracotta
6th-5th century BCEGreek