Terracotta
Metal
17th centuryPersianTerracotta
Copper alloy
2nd century BCEHellenisticTerracotta
RomanSilver
18th centuryAmericanCast bronze; with engraved inscription dated to 65 BC (Yuankang yuan nian) on the underside of the ring
1st century BCEChineseBrass, with electrical components
20th centuryFinnishTerracotta
1st century CERomanTerracotta
Roman