1931年中央银行2角5分正反面样票一对,无日期,打孔,均评PMG 63,有修补。The Central Bank of China,a pair of uniface obverse and reverse specimen 25 cents, ND (1931), control number 0418, perforated,(Pick 204s1, 204s2), both graded PMG 63 Choice Uncirculated (Previously Mounted) (1 pair)