irregular: 5.2 cm (2 1/16 in.)
Stone
Exterior: lacquer; Interior: ink, opaque watercolor and gold on paper
19th centuryPersianStone
1st-2nd millennium CERomanMetal
RomanCopper alloy
2nd-5th century CERomanHammered bronze
10th-14th centuryKoreanSilver
19th centuryAmericanMixed copper alloy
1st-2nd century CERomanSilver
18th centuryAmericanBronze
1st-2nd millennium CERomanIron
Greek