拍品號碼 3969

1956年及57年特15首都名胜首日實寄封一套2枚，分別自北京航空寄英國及上海寄美國。上品。此套封十分罕見，因其中（5-3）天安門圖案票發行時有太陽射綫，而因政治原因取消發行，再于1957年發行一枚無射綫圖案的票，而在1957年這枚票沒有幾個人知道發行，因此製作的首日封寥若晨星，導致全套首日封非常稀少，是集郵人渴求而不可得的珍品。 former one from Beijing China Philatelic Company airmail to England, later one from Shanghai to U.S.A. Extemely rare set as (5-3) was withdrawn in 1956 and re-issued with a different picture in 1957, only a few philatelist made this FDC.