Watch List notes:

CHINA, CHOU, Warring States (476-221), Kingdom of Chao (?) , AE three holes spade money of 1 liang, 350-250 B.C. Nü Shih I. With number 20 on top of the handle on the rev.. Ref.: Coole, 4401; Hartill, - (cfr 3.484-489 for type). 10,96g. Very Rare.
good Very Fine