China, Han to Sui (206 BC - 589 AD), ? ? Wu Zhu (2 examples), ? ? San Zhu and ? ? Si Zhu (4), small round and square cash, with round and square holes, c. 12-22 mm, 0.75-2.61g (H. unlisted; 13.50 var.; 13.51, 10.26). Fine to Very Fine, San Zhu and Si Zhu privately minted. One Wu Zhu is Sui. (4)