L-Istati Uniti
Muri Bhalissa: L-Istati Uniti - Bolol tal-posta ta' l-ajru (1918 - 2012) - 1 bolol.
1988
Avaition Pioneers - Igor Sikorsky, 1889-1972
23. June WM: Xejn Disinn: R. Wicks. Inċiżjoni: D. Brown, G. Chaconas, G. Slaught Perforazzjoni: 11
![[Avaition Pioneers - Igor Sikorsky, 1889-1972, Tip CN]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/CN-s.jpg)
