China. (French Territory in Kouang - Tcheou - Wan). 1916. Stamp-less envelope addressed to Haiphong, Tonkin cancelled by Fort - Bayard - Indo Chine double ring '29th May 16' (Desrousseaux Type 3/bis (T) with circular military 'Quang - Tcheou - Wan/ Le Commandant/ Des Troupes' in blue on face with Haiphong arrival on reverse '2nd Juin'.
Superb item of military mail during World War One from the French Leasehold Territory of Kouang-Tcheou-Wan.