BANKNOTES. CHINA - REPUBLIC, GENERAL ISSUES. Bank of Communications : Specimen 1-Yuan (4), 1 November 1927, four colour varieties: blue Shanghai , green Tientsin , brown and purple without place name, red “SPECIMEN” overprint and punch-hole cancellation, printer ABNC (P 145Ac, 145C, 146, 146C). Uncirculated. (4pcs)