Zobrazujú sa: Spojené štáty - letecká pošta - známky (1918 - 2012) - 2 známky.
1967
The 100th Anniversary of the Alaska Purchase
30. marec WM: nikto Perforácia: 11
![[The 100th Anniversary of the Alaska Purchase, typ AT]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/AT-s.jpg)
1967
Birds - Columbia Jays by John James Audubon
26. apríl WM: nikto Perforácia: 11
![[Birds - Columbia Jays by John James Audubon, typ AU]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/AU-s.jpg)
