1893 (11 July) free-frank cover endorsed "Colonne du Haut Mekong" and on reverse "Khone-Sud" and signed by the officer, addressed to France, with octagonal "Corr.D.Armees MyTho" and "Corps Exped're du Tonkin L.N.No.5" (15 July), Saigon-Central Cochinchine (11 July) transit and Besancon (14 Aug) arrival pmks, rare usage (Image)

Est.US$2,000