China French 1880 Envelope to Corsica

bearing French General Colonies Yvert 17, 5c green tied by Tonquin Hai-Phong datestamp with Marine Francaise / Service a la Mer cachet on reverse, routed via Hong Kong with transit, French entry cachet with Rogliano Corse arrival on reverse. Superb item paying the printed matter rate to France. (pt)    ID: 30326