Združene države
Sedaj prikazano: Združene države - Znamke letalske pošte (1918 - 2012) - 2 znamke.
1935
"China Clipper" over the Pacific
22. november WM: Nič Perforacija: 11
![["China Clipper" over the Pacific, tip M]](https://swmedia-4cd6.kxcdn.com/media/catalogue/United-States/Airmail-stamps/M-s.jpg)
1937
"China Clipper" over the Pacific
15. februar WM: Nič Perforacija: 11
![["China Clipper" over the Pacific, tip M1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/United-States/Airmail-stamps/M1-s.jpg)
![["China Clipper" over the Pacific, tip M2]](https://swmedia-4cd6.kxcdn.com/media/catalogue/United-States/Airmail-stamps/M2-s.jpg)
