irregular: 4.2 cm (1 5/8 in.)
Terracotta
6th-5th century BCEGreekCeramic
KoreanYue ware: light gray stoneware with celadon glaze over incised decoration
10th-11th centuryChineseBlackened gray earthenware
3rd millennium BCEChineseCeramic
EgyptianTerracotta
GreekWhite ware: porcelain (or white stoneware) with clear glaze
KoreanGlass
2nd-4th century CERomanTerracotta
Roman