Amerika Serikat
Menampilkan: Amerika Serikat - Perangka pos udara (1918 - 2012) - 1 prangko.
1988
Avaition Pioneers - Igor Sikorsky, 1889-1972
23. Juni WM: Tiada Desain: R. Wicks. Ukiran: D. Brown, G. Chaconas, G. Slaught Perforasi: 11
![[Avaition Pioneers - Igor Sikorsky, 1889-1972, Tipe CN]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/CN-s.jpg)
