現在展示： 美國 - 航空郵票 (1918 - 2012) - 2 郵票.
1967
The 100th Anniversary of the Alaska Purchase
30. March 窗口管理器: 空缺 篩孔: 11
![[The 100th Anniversary of the Alaska Purchase, 類型 AT]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/AT-s.jpg)
1967
Birds - Columbia Jays by John James Audubon
26. April 窗口管理器: 空缺 篩孔: 11
![[Birds - Columbia Jays by John James Audubon, 類型 AU]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/AU-s.jpg)
