1931
sight: 5.1 cm (2 in.)
Copper alloy
1st century BCE-1st century CERomanCopper alloy
7th-8th centuryAvarCopper alloy
3rd century BCEGreek
Glass
3rd-1st century BCEGlass
5th-3rd century BCEChinese
Gold sheet
6th century BCE
Gold sheet
6th century BCECopper alloy
5th-4th century BCEItalicArsenical copper
3rd millennium BCEAnatolian
Bronze
5th-4th century BCECopper alloy
1st century BCE-1st century CERomanBronze
6th-4th century BCEIranian