Watch List notes:

BANKNOTES. CHINA - REPUBLIC, GENERAL ISSUES. Central Bank of China: Uniface Obverse and Reverse Proof $10, green, and 50-Yuan, olive-gray, 1923, Sun Yat-Sen at centre, unperforated and all mounted on card stock except the 10-Yuan Obverse, ABNC Archive Proofs (P 177, 178A for type, olive-gray unlisted). Uncirculated.
(4pcs)

Estimate: US$500-600