1975年香港上海汇丰银行500元,编号不符错体,Q553921/563921,PMG 50EPQ,有趣的重要年份500元错体票,原装美品. HongKong and Shanghai Banking Corpiration, ERROR $500, 31 March 1975, mismatch serial number Q553921/563921, (Pick 186b), PMG 50EPQ About Uncirculated. An interesting error on the key date $500. Good original example