11th-early 12th century
Diam. 12.4 cm (4 7/8 in.)
Silver, ebony
19th centuryAmericanWhite stoneware with transparent glaze tinged with green
7th centuryChineseTerracotta
6th century BCEGreekTerracotta
RomanFritware with luster decoration
13th centuryPersianSilver
18th centuryBritishSilver
19th centuryAmericanMetal
14th centuryItalianMetal
17th centurySpanishProto-porcelain: stoneware with thin ash glaze
8th-7th century BCEChinese