Erik Boeré Philatelie : Frimärken till salu - USA
Visar nu: USA - Postfrimärken (1847 - 2024) - 2 frimärken.
1948
Palomar Mountain Observatory
30. augusti WM: Inga Perforering: 10½ x 11
![[Palomar Mountain Observatory, Typ QE]](https://swmedia-4cd6.kxcdn.com/media/catalogue/United-States/Postage-stamps/QE-s.jpg)
1948
Palomar Mountain Observatory
30. augusti WM: Inga Perforering: 10½ x 11
![[Palomar Mountain Observatory, Typ QE]](https://swmedia-4cd6.kxcdn.com/media/catalogue/United-States/Postage-stamps/QE-s.jpg)