c. 430 BCE
3.4 × 6.8 cm (1 5/16 × 2 11/16 in.)
Copper alloy
6th-7th centuryByzantineGreenish white, very translucent nephrite
10th-13th centuryChineseCopper alloy
7th-8th centuryAvarBody: Mixed copper alloy; Pin: Bronze
3rd-4th century CERomanMixed copper alloy
10th-8th century BCEIranianCopper alloy
8th-7th century BCEItalicCopper-tin-antimony alloy
10th-8th century BCEIranianCopper alloy
7th-8th centuryAvarStone
Copper alloy
5th-4th century BCEItalicBluish-white stone

Mediterranean red coral (Corallium rubrum), bronze
5th century BCE