Lot 10007 – 1923 (December 31) Trial flight from Buenos Aires

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.