Cover franked with 1924 10c carmine & 50c black & orange (SG 300 & 302) tied by PORT-AU-PRINCE cds's dated 10 JAN 1929 with circular 'AVION' Airplane cachet in red alongside. Flown on the Port-au-Prince - Santo Domingo first flight by pilot Basil Rowe with large semi-circular 'PREMIER VOL' cachet in red on front. Addressed to SANTO DOMINGO, DOMINICAN REPUBLIC with arrival cds on reverse. (Muller #17, 547 covers carried)