Heritage Auctions, Auction 3117, Lot 30028 China
Hsüan-t'ung copper Specimen Pattern Li ND (1910) SP63 Brown PCGS, Vienna mint, KM-Pn272, Hsu-31, CCC-627, CL-HB.75, Duan-2484, Hsu (Copper)-531, HNS-2166. A significant Pattern for its small size, ranked as the rarest of the just two varieties in copper by Zhou and Li. Planned as part of a larger, new denominational series following a hia...