China. (French Indo-China). 1940. Air Mail envelope written on board the French Frigate 'Commandant Bourdais' addressed to France bearing Indo-China SG 187, 21c olive and SG 260, 9c + 4c red-orange tied by Poulo-Condore/ Cochinchine date stamp with hand-struck 'Canonniere/Commandant Bourdais' in violet with circular 'Poulo Condore/Cochinchine/Le Commandant D' Armees' routed via Saigon. Attractive item of military mail.