2 cm (13/16 in.)
Iron with gold and silver
18th-19th centuryJapaneseTerracotta
Copper alloy
1st millennium CEByzantineSilver
18th-19th centuryRussian
Glass
2nd-1st century BCE
Bronze
5th-4th century BCECopper alloy
9th-7th century BCEItalicGold, silver and copper alloy
14th-15th centuryPre-ColumbianGold with glass mosaic
19th centuryItalianCopper-tin-antimony alloy
10th-8th century BCEIranianIron
19th centuryGermanCopper alloy
7th-8th centuryAvar