BANKNOTES, 紙鈔 , CHINA - REPUBLIC, GENERAL ISSUES, 中國 - 民國中央發行 Central Bank of China 中央銀行 : Uniface Obverse and Reverse (2) Proof $1, Obv green, Rev two shades of brown; Uniface Reverse Proof $10, green, and $50, blue-black, 1928, Shanghai 上海 , unperforated and mounted on card stock, ABNC Archive Proofs (P 195, 197, 198). Uncirculated. (5pcs)