USA
Viser nu USA - Luftpostfrimærker (1918 - 2012) - 2 frimærker.
24. november VM: Ingen Arkstørrelse: 4 Design: K. Hodges, Richard Sheaff Gravering: G. Slaght, M. Ryan Perforeringer: Imperforated
![[The 20th UPU Congress & World Stamp Expo '89, type ]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/0113-b.jpg)
27. november VM: Ingen Design: K. Hodges, Richard Sheaff Gravering: G. Slaght, M. Ryan Perforeringer: 11
![[The 20th UPU Congress, type ]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/0117-b.jpg)