BANKNOTES, 纸钞, CHINA - FOREIGN BANKS, 中国 - 外国银行, International Banking Corporation 美商花旗银行: Specimen $1, 1 July 1919, Hankow 汉口, serial no.000000, red “SPECIMEN” overprint and punch-hole cancellation, extra-wide top margin, printer: ABNC (P S411). In CMC holder graded Gem Uncirculated 66 OPQ.