China. (French Indo-China). 1940. Air Mail envelope endorsed 'via Panamerican Airways' addressed to France bearing SG 189, 25c violet (4) and SG 210, 66c bronze tied by Dinh-Lap/ Tonkin date stamp '24th Aug 40' with circular 'Commandant D' Armees' cachet routed via Tien-Yen and Haiphong with arrival '10th Oct'. Ex Proud.