THE 2021 SUMMER SALE - SALE 336 Day 3

1937 (Jul 19) Kiangsu Chiaotouchen to Peiping cover,
f.w. Martyrs 1c x 5, tied by Chiaotoutseng bilingual cds., along with Nanking transit. On reverse with Peiping transit and arrival. The cover was sent during the time of Marco Polo Bridge Incident, the start of Japanese invasion.
1937年7月19日江蘇橋頭鎮寄北平西式封，貼烈士1分票5枚，銷橋頭鎮三格漢英日戳，旁有南京中轉戳。背有北平中转及到達戳。此封寄出時正值七七事變，日本侵華之開端。