THE 2020 WINTER SALE - SALE 334 & S335 Day 2

1944 (Nov 27) WWII Chungking to USA censor airmail cover, changed to ordinary mail due to insufficient postage, f..w SYS $1 in horizontal strip of 3, tied by Chungking bilingual cds., along with Tahcheng transit, "Postage Just Sufficient for Ordinary Mail" cachet and censor label. VF-F. Rare.
1944年11月27日二戰时期重慶寄美國航空檢查封，因郵費不足改為平郵寄出，貼孫像1元橫3連，銷重慶三格點線日戳，旁有新疆塔城中轉戳、檢查封條及"郵費不足/不能航空"指示戳。二战时期经塔城航空封极罕见，上品。