Spojené štáty
Zobrazujú sa: Spojené štáty - letecká pošta - známky (1918 - 2012) - 2 známky.
1935
"China Clipper" over the Pacific
22. november WM: nikto Perforácia: 11
![["China Clipper" over the Pacific, typ M]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/M-s.jpg)
1937
"China Clipper" over the Pacific
15. február WM: nikto Perforácia: 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)
