Prezentat acum: Statele Unite (SUA) - Timbre Par Avion (1920 - 1929) - 8 timbre.
15. August WM: Niciunul Perforare: 11
![[Airplane Radiator and Wooden Propeller, Tip B]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/B-s.jpg)
17. August WM: Niciunul Perforare: 11
![[Air service Emblem, Tip C]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/C-s.jpg)
21. August WM: Niciunul Perforare: 11
![[De Havilland Biplane, Tip D]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/D-s.jpg)
WM: Niciunul Perforare: 11
![[Mao of U.S. and Two Mail Planes, Tip E]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/E-s.jpg)
![[Mao of U.S. and Two Mail Planes, Tip E1]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/E1-s.jpg)
![[Mao of U.S. and Two Mail Planes, Tip E2]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/E2-s.jpg)
18. Iunie WM: Niciunul Perforare: 11
![[Lindbergh's "Spirit of St.Louis", Tip F]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/F-s.jpg)
25. Iulie WM: Niciunul Perforare: 11
![[Beacon on rocky Mountains, Tip G]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/G-s.jpg)