irregular: 5 cm (1 15/16 in.)
Ceramic
JapaneseCeramic
KoreanLight gray stoneware with celadon glaze
KoreanTerracotta
5th-4th century BCEGreekTerracotta
6th century BCEGreekTerracotta
RomanPigment on Plaster
2nd-3rd century CESyrianTerracotta
MinoanLow-fired gray earthenware
3rd millennium BCEChineseBlackened dark gray earthenware
3rd millennium BCEChinese