Watch List notes:

BANKNOTES. CHINA - REPUBLIC, GENERAL ISSUES. China & South Sea Bank Ltd: Uniface Obverse and Reverse Proof 1-Yuan, 1 October 1921, unperforated and mounted on card stock, ABNC Archive Proofs (P A121). Minor peeling and small pieces missing from upper and lower right corners of the Obverse Proof without affecting the main frame, about uncirculated.
(2pcs)

Estimate: US$400-500