China. (French Indo-China). 1938. Air Mail postal stationery envelope 36c red from the '5th Artillery Battalion R.A.C., Saigon' addressed to French Maroc bearing Indo- China SG 168, 1c brown, SG 241, 2c violet, SG 242, 3c green and SG 244, 6c brown tied by Saigon Central Cochinchine date stamp with Casablanca arrival. Attractive franking.