China
Qing Dynasty, the Daoguang Emperor Palace 1 Cash Mother Coin ND (1821-50), type of Hartill-22.586, XF. The "mother" coin is the coin from which the mold was produced that was used to cast the normal cash pieces. These coins have much sharper details than the regular coinage and are easy to identify. They are also quite scarce.From The Dr. Patrick Tan Collection
Estimate: 250-300 USD