美國
現在展示： 美國 - 航空郵票 (1918 - 2012) - 2 郵票.
1935
"China Clipper" over the Pacific
22. November 窗口管理器: 空缺 篩孔: 11
![["China Clipper" over the Pacific, 類型 M]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/M-s.jpg)
1937
"China Clipper" over the Pacific
15. February 窗口管理器: 空缺 篩孔: 11
![["China Clipper" over the Pacific, 類型 M1]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/M1-s.jpg)
![["China Clipper" over the Pacific, 類型 M2]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/M2-s.jpg)
