FRENCH INDOCHINA. 1885 cover addressed to the Secretary to the Japanese Ambassador, on board a French Paquebot at Hong Kong, franked by Dubois 1881 25c. yellow bistre tied by TONQUIN / HAI-PHONG c.d.s. with information strike at left (Dec 10). Reverse with ‘Hong Kong’ arrival c.d.s. (Dec 17). A fine and scarce cover. Yvert 53. Ex. Desrousseaux. (Photo). Est. 150 - 200 CHF.