1/MAR/1928 Buenos Aires - Natal, first flight of Compañía General Aeropostal, registered airmail cover with AR, 5c. stationery envelope + additional postage to pay the airmail surcharge (5c. per gram) + the registration + and the AR (total 91c.). It was sent to viscount Dedalot, general manager of Havas Agency, unknown and returned to sender with notable hand-written and postal marks on back, excellent! (Image)

26/MAR/1929 Buenos Aires - Montecaseros, second flight of Aeroposta Argentina in the route inaugurated on 21/MAR. Cover with arrival backstamp of 26/MAR, excellent quality, only 12 covers were flown in this flight! (Image)

29/AP/1929 Buenos Aires - Monte Caseros, cover carried on 5th flight of Aeroposta Argentina (pilot Paul Vachet), arrival backstamp, excellent quality, very rare (few covers were flown!) (Image)

30/OC/1929 Comodoro Rivadavia - San Antonio Oeste, flight flight of Aeroposta Argentina, pilot Saint Exupery. On back it has an arrival mark of 31/OC, excellent quality, extremely rare, only 38 covers were flown! (Image)

22/FE/1930 Buenos Aires - Paraguay, registered airmail cover sent by Aeroposta Argentina S.A. franked with 85c., on back arrival mark of Asunción for the following day, very fine quality! (Image)

14/MAR/1931 Comodoro Rivadavia - Buenos Aires, airmail cover sent by Aeroposta Argentina S.A. franked by 55c. (one stamp is damaged), arrival backstamp, very nice! (Image)

29/AP/1931 PUERTO MADRYN - Buenos Aires, airmail cover sent by Aroposta Argentina S.A. franked with 25c., arrival backstamp of Buenos Aires (date almost illegible). The sender was a cadet of the "Frigate Sarmiento at sea"!! very attractive! (Image)