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Reference: Hartill 6.30
State of Qin, c. 250-220 BC
Liang Zi 兩 甾
Weight: 5.4 grams; Size: 30.6 mm; Bronze
A Zi was a weight of 6 zhu. Liang here means "2", Therefore 2 Zi was the same as 12 zhu, or Half a Liang (Ban Liang Coin). This is in line with the coin weight.