The China & South Sea Bank Limited, China, obverse and reverse uniface proof 5 yuan, 1927, red, sundial in the Forbidden City of Peking at left on obverse, no serials or signatures, indigo on reverse,(Pick A127p1, A127p2), PMG 63 Choice Uncirculated (Minor Edge Damage) and 64 Choice Uncirculated (Corner Tip Missing). Ex-ABNC archive, quite scarce (2).
Estimate: 3000 - 4000