미국
지금 보여주기: 미국 - 항공 우표 (1918 - 2012) - 2 우표.
1935
"China Clipper" over the Pacific
22. 11월 WM: 없음 절취선: 11
![["China Clipper" over the Pacific, 유형 M]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/M-s.jpg)
1937
"China Clipper" over the Pacific
15. 2월 WM: 없음 절취선: 11
![["China Clipper" over the Pacific, 유형 M1]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/M1-s.jpg)
![["China Clipper" over the Pacific, 유형 M2]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/M2-s.jpg)
