Iron
RomanStone
Stone
1st-2nd millennium CERomanBronze
KoreanCopper alloy
1st-4th century CERomanMetal
19th centuryIslamicTerracotta
Copper alloy
1st-4th century CERomanTerracotta
5th-4th century BCEGreekBronze
1st-2nd millennium CERomanSilver
18th centuryAmericanGray stone with some polishing
4th-3rd millennium BCEChinese