Tortoise shell?
19th centuryBritishIron
19th centuryGermanLeaded bronze
2nd-1st millennium BCENear EasternGold with glass mosaic
19th centuryItalianCopper alloy
2nd-4th century CERomanCopper-tin-antimony alloy
10th-8th century BCEIranianGlass
5th-3rd century BCEChineseCopper alloy
7th-8th centuryAvarSilver color
18th-19th centuryUnidentified cultureSilver colored
19th centuryIndianBronze
1st millennium BCEIranianGilt copper alloy
7th-8th centuryAvar