Wordt nu getoond: Verenigde Staten van Amerika - Luchtpost Postzegels (1918 - 2012) - 4 postzegels.
13. oktober WM: Geen Ontwerp: Sante Graziani Graveren: Sante Graziani Perforatie: 11
![[Philip Mazzei, type BS]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/BS-s.jpg)
![[Philip Mazzei, type BS1]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/BS1-s.jpg)
30. december WM: Geen Perforatie: 11
![[Aviation Pioneers, type BT]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/BT-s.jpg)
![[Aviation Pioneers, type BU]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/BU-s.jpg)
