China
Ming Dynasty. Si Zong copper "Double Obverse Mule" Cash Coin ND (1628-44) Certified 75 by HuaXia, Tong Bao mint, Hartil-20.235 var (double obverse mule). A highly intriguing Cash type, due to the muling of two obverse cast dies. 3.3 grams.
HID02901242017
Estimate: 250-400 USD