1994年中国银行(香港)一套5枚,AA头版票,尾数688,PMG66/67EPQ。Bank of China, set of 5 notes, $20, $50, $100, $500 and $1000, all dated 1.5.1994 and with the first issue AA prefix and the serial number ending in 688 (Pick 329a, 330a, 331a, 332a and 333a), PMG 66EPQ and 67EPQ (5)