Printed 'Commemorating the Defeat of the British Defenders, Battle of Port Royale, Roatan, Bay Islands, Honduras 16th March 1782' cover franked with 1972 12c '150th Anniversary of Independence' issue (SG 802) tied by AGENCIA POSTAL SANTOS GUARDIOLA, ISLAS DE LA BAHIA cds dated 16 MAR 1977 with uncancelled 7c (SG 798) on reverse. Addressed to SAN PEDRO SULA. Santos Guardiola was a small postal agency in the village of Oakridge on the island of Roatan. Uncommon.