Birleşik Devletler
Şimdi gösteriyor: Birleşik Devletler - Hava maili pulları (1918 - 2012) - 2 pullar.
1935
"China Clipper" over the Pacific
22. Kasım WM: Hiçbiri Perforasyon: 11
![["China Clipper" over the Pacific, tip M]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/M-s.jpg)
1937
"China Clipper" over the Pacific
15. Şubat WM: Hiçbiri Perforasyon: 11
![["China Clipper" over the Pacific, tip M1]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/M1-s.jpg)
![["China Clipper" over the Pacific, tip M2]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/M2-s.jpg)
