Mixed copper alloy
7th centuryByzantineCopper alloy
9th-8th century BCEItalicCopper-tin-antimony alloy
10th-8th century BCEIranianCopper alloy
6th century BCEEuropeanCloisonné plaque, gold-mounted
19th centuryChineseBone
1st-4th century CERomanStone
EgyptianBronze
8th century BCEGreekCarnelian set in gold
1st century BCE-2nd century CERoman
Bronze
5th-4th century BCECarnelian set in gold
RomanOpaque black glass
4th-3rd century BCEGreek