Watch List notes:

The National Industrial Bank of China, obverse and reverse proof for 1 yuan, 1931, no serial numbers or signatures,(Pick 531p1, 2), PMG 63 (paper pulls), 64. Ex ABNC archive, these were not sold in the auction back in the 1990s. Scarce proof form without perforation or any overprints, scarce.

Estimate: 2000 - 3000