1911 (2 Sept.) First International Airmail, Buenos Aires to Montevideo, 10c franking tied by B.A. Exterior cds, bold strike in blue of the special cachet (naming pilot Teodor Fels), with blue “Pro-Aviacion Militar” label on reverse plus Carteros / Montevideo bs (2 SEP. 2°), very fine, signed Roumet (Müller 4, 20’000pts) (Image)

1921 (March) Buenos Aires to Asuncion del Paraguay flight, two 5c Orange tied to front by machine cds (March 29), special printed label on back reading “POR AEREOPLANO / PILOTO / Mayor S. G. Kingsley / MARZO 28 DE 1921” tied by two diff Paraguay receivers (dates almost legible) incl. Asuncion, and by Buenos Aires Exterior cds (March 29). Fine and extremely rare example of this “forgotten” pioneer effort by aviatrix Shirley Kingsley (later responsible for Buenos Aires to Montevideo trial flights in 1923); this event not listed by Müller, AAMC, etc. (Image)

1923 (December 31) Trial flight from Buenos Aires to Montevideo flown by aviatrix Shirley Kingsley, three 5c tied at origin by “Exterior” cds (also shows machine bs of the same day), manuscript “Por aeroplano,” and backstamped at Montevideo on Jan. 1, 1924. Fine, certified by Sociedad Argentina de Aerofilatelia (1994). Note: has original contents, two large business cards with notes about the flight. An extremely rare pioneer flight cover, with just TWO COVERS RECORDED carried on this flight. (Image)

1927 (12 Nov.) Cover flown on “Nungesser-Coli” plane from Buenos Aires to Montevideo, franked by 20c composed of different values, Montevideo arrival on reverse, pilots Costes and Le Brix, very fine, cert. César Jones (Image)

1927 (25 Nov.) Buenos Aires to Asuncion (Paraguay) flight by Costas & Le Brix, stamps of each country tied by respective Nov. 25 cds to cover with printed cachet, only 85 carried, unaddressed, vert. fold, fine (Mü. 26, 7’500pts) (Image)

1929 (12 Sept.) Trial Flight, Comodoro Rivadavia (Patagonia) to Buenos Aires by pilot Paul Vachet (who signed the special envelope), 5c San Martin tied by first day of use of the Comodoro Rivadavia cds (11.SET.29), bs on arrival SEP 12 / 1929, taking 12 hours to cover the 1’800km, only 400 such covers flown, very fine (Mü. 46, 2’500pts) (Image)

1930 (Jan 25) C.G.A. crash by Laté 26 from Buenos Aries to Toulouse, which crashed into the sea between Ceuta and Mellila, with two postal bags later washing up on beaches, cover with stamps washed off and affixed with a typed label on reverse explaining the delay, rare (Nierinck 300125a) (Image)

1930 (May 10) Crash of C.G.A. plane flying from Buenos Aires to Montevideo (all but one passenger killed), cover to Germany with violet three-line hs, “Accident d’Avion / Correspondances recueillies en mer / NE PAS TAXER,” opened for display, fine (Nierinck 300510a) (Image)

1930 (May 10) C.G.A. flight from Buenos Aires to Toulouse which as a result of very bad visibility crashed into the sea, 1482 letters were recovered, envelope with “Accident d’Avion / Correspondances recueillies en mer / “NE PAS TAXER” violet hs on reverse, still with franking, Liege bs (Nierinck 300510a) (Image)

1930 (May-June) Zeppelin South America Flight, two items, cover with cplt. blue ovpt. set (Scott C20-24) and 5c postal card with 1P and 50c green ovpts, each with add’l franking, tied by May 21 or 22 airmail cds and flown to Europe (former to Austria, latter to Germany), each with triangular Argentine cachet and “American” cachet, each with F’hafen 6.6.30 receiver, fresh and very fine (Sieger 63, € 730) (Image)

1930 Zeppelin South America Flight, cover and 5c postal card with add’l overprint frankings (card with 1P & 50c, cover with pair of 1P, two 50c and Bolivar 12c) all tied by Buenos Aires cds (21 May), F’hafen bs (6.6.30), diamond cachets plus special Argentina cachet, very clean, very fine (Sieger 63 B) (Image)

1930 (8 June) First Trans-Atlantic Airmail-Only flight cover with 68c franking tied at Buenos Aires, three strikes of special boxed cachet front and back, bs Paris (18 June), one of the few covers signed by pilot Mermoz, very fine (Mü. 94a, 2’500pts) (Image)

1930 Zeppelin ovpts cplt. in blue plus all but 1P80 with same in GREEN, lh, very fine (Scott $391) (Image)

1931-34, Six diff. Graf Zeppelin flight covers, frankings incl. 1932 ovpts, useful and fine group (Sieger 135, 135 var.,151 I, 173C, 185, 256; € 280+) (Image)

1935 (Nov 3) Crash by Air France plane from Chile to France, cover sent from Buenos Aires to Montrouge, with part of the ambulance envelope cut out and stuck to the cover, showing the “COURRIER ACCIDENTE AU BRESIL” hs, arriving Nov 14 in Montrouge, fine (Image)

1940 Airmail set with specimen “Muestra” overprints in strips of three (2.50p in vert. strip), mint nh, very fine (Image)