1997年香港20元一套3枚,中国银行、渣打银行及汇丰银行特别发行,相应编号 973250,均为 PMG 66EPQHong Kong, a set of $20, special issue by Bank of China, Standard Chartered Bank and Hong Kong & Shanghai Banking Corporation, 1997, with identical serial number 973250, (Pick 329c, 285b1, 201c), all PMG 66EPQ.(3)