12.5 cm (4 15/16 in.)
Stone
20th centuryChineseVolcanic stone
3rd millennium BCEAnatolianWatered steel with gold inlay
17th centuryPersianBronze
12th-10th century BCEIranianBronze
13th-11th century BCEChineseIron
JapaneseWatered steel, gold
17th centuryPersianLeaded copper
3rd millennium BCEIranianLead
Stone
ChineseArsenical bronze
3rd millennium BCEIranianLeaded arsenical copper
2nd millennium BCELevantine