Airmail cover franked with 1924 5c scarlet 'San Martin' issue and 1928 3 x 10c greenish blue & pair 15c chocolate 'Air' issue (SG 534 & 559/560) tied by VIA AEROPOSTAL BUENOS AIRES cds's dated 19 FEB 1930. Flown on the BUENOS AIRES - MIAMI USA flight by 'NYRBA' with boxed 'VIA NYRBA CORRESPONDENCIA AEREA and illustrated ARGENTINA - ESTADOS UNIDOS PRIMER CORREO AEREO cachets in purple. Addressed to USA. (Muller #77)