Visar nu: USA - Flygpostsfrimärken (1930 - 1939) - 14 frimärken.
10. februari WM: Inga Perforering: 11
![[Winged Globe, Typ H]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/H-s.jpg)
19. april WM: Inga Perforering: 11
![[Graf Zeppelin Issue, Typ I]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/I-s.jpg)
![[Graf Zeppelin Issue, Typ J]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/J-s.jpg)
![[Graf Zeppelin Issue, Typ K]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/K-s.jpg)
WM: Inga Perforering: 10½ x 11
![[Winged Globe, Typ H1]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/H1-s.jpg)
![[Winged Globe, Typ H2]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/H2-s.jpg)
2. oktober WM: Inga Perforering: 11
![[Zeppelin, Typ L]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/L-s.jpg)
30. juni WM: Inga Perforering: 10½ x 11
![[Winged Globe, Typ H3]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/H3-s.jpg)
22. november WM: Inga Perforering: 11
![["China Clipper" over the Pacific, Typ M]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/M-s.jpg)
15. februari WM: Inga Perforering: 11
![["China Clipper" over the Pacific, Typ M1]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/M1-s.jpg)
![["China Clipper" over the Pacific, Typ M2]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/M2-s.jpg)
14. maj WM: Inga Perforering: 11
![[Eagle, Typ N]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/N-s.jpg)
16. maj WM: Inga Design: Alvin R. Meissner Perforering: 11
![[Winged Globe - New edition, Typ O]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/O-s.jpg)
