1999年及2000年香港上海汇丰银行贰拾圆，趣味号码一组两枚，NM000009乃1999年发行共500,000张，而NM900000乃2000年发行，故此称为骑版，如此可见这样的趣味组合只能有五对（1，6，7，8，9），均PMG 66EPQ，难得一见；The HongKong and Shanghai Banking Corporation, $20, a pair of fancy numbers with overlapped dates, NM000009, 1.1.1999 and NM900000, 1.1.2000, the year 2000 is the key date for the issue with the prefixes spanning from NM to NW. NM000001 to 500000 is printed in 1999, NM500001 to 1000000, is printed in 2000 whilst NW000001 to 500000 is printed in 2000 whilst NW500001 to NM100000 is printed in 2001,(Pick 201d), both graded PMG 66EPQ, a very scarce and interesting fancy number pair. Due to the issue only numbers with 1, 6, 7, 8, 9 can be made into pairs like these (2)
