late 19th-early 20th Century
Gold
7th century BCEEtruscanCopper alloy
7th-8th centuryAvarBronze
9th-8th century BCEItalicCarnelian gem in gold setting
4th-1st century BCERomanGreenish white, very translucent nephrite
10th-13th centuryChineseGold?
19th centuryIndianCopper alloy
9th-8th century BCEItalicTranslucent turquoise-blue glass
5th-1st century BCEChineseBronze
5th century BCEGreekCopper alloy
7th-8th centuryAvarLead
RomanTortoise shell?
19th centuryBritish