China. (French Indo-China). 1932. Military mail envelope addressed to Haiphong bearing 'Franchise Militaire' Yvert 6, 50c red tied by Binhlieu/ Tonkin double ring with military cachet '2nd Regiment de Tiraileurs Tonkinois/Le Captaine Commandant' in violet routed via Tien-Yen/Tonkin with Hai-Phone arrival on reverse. Very fine and scarce.