7th century BCE
A: 7.9 x 7.9 x 1.1 cm (3 1/8 x 3 1/8 x 7/16 in.) B: 7.5 x 7.8 x 1.1 cm (2 15/16 x 3 1/16 x 7/16 in.)
Copper alloy
1st-5th century CERoman
Silver, enamel
20th centuryCopper alloy
1st-4th century CERomanStone
3rd millennium BCEChineseCopper alloy
1st-4th century CERomanMetal
10th-13th centuryIslamicPlaster,
Metal
Northern black ware of Cizhou type: light gray stoneware with dark brown glaze
12th-13th centuryChineseSilver
19th centuryBritish