Airmail cover franked with 1930 10c light blue AIR issue & 1931 3c purple (SG 280 & 296) tied by SANTIAGO roller cancel. Flown on the SAN PEDRO DE MACORIS - MEXICO First Flight with large three line 'CORREO AEREO DIC 10 1931 San P. De Macoris' cachet in purple with '10' of date added in manuscript. Mexican arrival cds's on reverse. Unlisted in Muller.