Zobrazujú sa: Spojené štáty - letecká pošta - známky (1918 - 2012) - 2 známky.
2009
National Parks - Self-Adhesive Stamps
28. jún WM: nikto Veľkosť hárka: 20 Dizajn: Edith Kessler Rytina: Avery Dennison, Clinton, SC. Perforácia: Rouletted 11
![[National Parks - Self-Adhesive Stamps, typ YVA]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/YVA-s.jpg)
![[National Parks - Self-Adhesive Stamps, typ YVB]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/YVB-s.jpg)
