1949年中国人民银行第一版人民币50元“火车”及500元“拖拉机”,编号X VIII IX 5730575及I II III 41972046,分别PMG 20及25。Peoples Bank of China, 1st series renminbi, 1949, a pair of 50 and 500 yuan, Train and Tractor, serial number X VIII IX 5730575 and I II III 41972046,(Pick 829b and 846a), PMG 20 and 25respectively (2).