(STAMPS). (CHALLENGE 1934. International Aviation Tournament in Warsaw, 3 stamps cashiered on envelope)....

(STAMPS). (CHALLENGE 1934. International Aviation Tournament in Warsaw, 3 stamps cashiered on envelope)....

- Polish Airmail Challenge 1934. denomination Gr 20. Dimensions: 2.5 x 2.7 cm.
- Polish Postal Challenge 1934 (Images of F. Żwirko and S. Wigura). Signed by R. Kleczewski. W. L. Vacek. Dimensions: 2.7 x 4.1 cm.
- Challenge Gordon Bennett 28 August - 16 September - 23 September 1934. aeroclub of the Republic of Poland. Dimensions: 6 x 4 cm.
Stamps affixed to envelope Dimension: 9 x 14 cm, with stamp with inscription in the rim: "International Aviation Tournament 28 XVIII ... Challenge 1934 Lvov 1".
Good condition. Challenge 1934 International Tournament Aircraft Competition - held August 28-September 16, 1934 in Warsaw and was the fourth and final competition of the Challenge series organized by the International Aeronautical Federation. They ended with the victory of the Polish team, which included Jerzy Bajan and Gustaw Pokrzywka. This team also took part in the previous competition. 9245/36.