French Colonies. (French Guyane). 1899. Registered French Guyane postal stationery envelope 15c blue upgraded with Yvert 37, 25c black/ rose tied by Cayenne/ Guyane double ring '31st Jan' with framed hand-struck 'R' addressed to Algeria, North Africa, routed via Bordeaux on the French paquebot "St. Laurent" with octagonal 'Ligne C Paq. Fr. No 1' date stamp '3rd Feb' (Salles 1523) and octagonal 'Colon a St. Nazaire L.A. No 2' (Salles 1408) with Toulouse ambulant on reverse and Le Kreider/ Oran receiver '28th Feb' on reverse. Nice item of destination mail from French Guyane to North Africa.