Spanish Colonies. (Golf de Guinea). 1918. Envelope addressed to Switzerland bearing Spanish Guinea SG 142, 5c green and SG 143, 10c vermilion (pair) tied by Santa Isabel/ Fernando Poo double ring with 'Controle Postal Militaire' censor tape tied by oval 'Ouvert/ Par L' Autorite Militaire/ 203' censor cachet on face and reverse. Nice item of censored mail from the Spanish Territories of the Gulf of Guinea.