Cehoslovacia
Prezentat acum: Cehoslovacia - Timbre poştale (1918 - 1992) - 1 timbre.
1966
Atomic Model of Uranium
29. August WM: Niciunul Design: F. Hudeček Gravură: L. Jirka Perforare: 11¼ x 11½
![[Atomic Model of Uranium, Tip AOZ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/AOZ-s.jpg)