WARRING STATES: Qin State, 250-220 BC, AE cash (5.69g), H-6.30, liang zi in archaic script, crude casting style without rims, Very Good, R, ex Jiùjinshan Collection. A zi was the weight of 6 zhu and liang here means "2", therefore 2 zi was valued as 12 zhu.
Estimate: 200-250 USD