BANKNOTES. CHINA - REPUBLIC, GENERAL ISSUES. Bank of China: Uniface Obverse and Reverse (2) Proof 1-Yuan, orange, Uniface Obverse and Reverse (2) Proof 5-Yuan, orange, Uniface Reverse Proof 10-Yuan, olive-brown, all September 1918, Shantung, unperforated and mounted on card stock, ABNC Archive Proofs (P 51o, 52n, 53n). Uncirculated.