Spring and Autumn Period (770-475 B.C.)
Diameter 1 9⁄16 inches (4 cm) each
Late Warring States Period, 3rd Century B.C.
Width 4 1⁄2 inches (11.4 cm)
Han Dynasty (206 B.C. – A.D. 220)
Length 2 3⁄16 inches (5.5 cm)
Warring States Period (475-221 B.C.)
Diameter 1 15⁄16 inches (4.9 cm)
Late Eastern Zhou Dynasty, 4th-3rd Century B.C.
Length 2 1⁄16 inches (5.3 cm)
Warring States Period, 4th-3rd Century B.C.
Height 2 1⁄2 inches (6.4 cm)
Late Eastern Zhou-Han Dynasty, circa 3rd Century B.C.
Diameter 7 15⁄16 inches (20 cm)