民国十七年(1928)劝业银行2角正反面试色样票,北京地名,均评PMG 64,有细孔。The Industrial Development Bank of China, 20 cents, a pair of uniface obverse and reverse color trial specimens, Peiping, Year 17(1928), (Pick 500cts), both graded PMG 64 Choice Uncirculated (Pinholes) (1 pair)