Viser nu USA - Luftpostfrimærker (1960 - 1969) - 2 frimærker.
1967
The 100th Anniversary of the Alaska Purchase
30. marts VM: Ingen Design: W. R. Cox. Perforeringer: 11
![[The 100th Anniversary of the Alaska Purchase, type AT]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/AT-s.jpg)
1967
Birds - Columbia Jays by John James Audubon
26. april VM: Ingen Perforeringer: 11
![[Birds - Columbia Jays by John James Audubon, type AU]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/AU-s.jpg)
