1997年香港特别行政区成立23K金首日封6枚连邮票6枚,编号565,全球仅发行9700套。Hong Kong, The Establishment of the Hong Kong Special Administrative Region 23K Gold Emblem First Day Cover, 1.7.1997, 6 gold emblem first day covers and 6 stamps,cert. 565 with a limited distribution of 9,700 sets worldwide