Grekland
Visar nu: Grekland - Postfrimärken (1861 - 2024) - 1 frimärken.
1980
Astronomy - The Heliocentric Theory of Aristarchus of Samos
5. maj WM: Inga Perforering: 13¾ x 12¼
![[Astronomy - The Heliocentric Theory of Aristarchus of Samos, Typ AJX]](https://www.stampworld.com/media/catalogue/Greece/Postage-stamps/AJX-s.jpg)
![[Astronomy - The Heliocentric Theory of Aristarchus of Samos, Typ AJY]](https://www.stampworld.com/media/catalogue/Greece/Postage-stamps/AJY-s.jpg)
