irregular: 2.5 cm (1 in.)
Inlaid celadon ware: light gray stoneware with decoration inlaid in black and white under a blue-green celadon glaze
20th centuryKoreanBlackened gray earthenware
3rd millennium BCEChinesePunch'ong ware: gray stoneware inlaid with slip and covered with a celadon glaze
KoreanTerracotta
14th-12th century BCEMycenaeanInlaid celadon ware: light gray stoneware with celadon glaze over decoration inlaid in black and white slips
13th centuryKoreanTerracotta
GreekCeramic
EgyptianLongquan celadon ware: pale gray stoneware with bluish green celadon glaze. From the Longquan kilns in Zhejiang province
12th-13th centuryChineseTerracotta
Ceramic
Central Asian