Cehoslovacia
Prezentat acum: Cehoslovacia - Timbre poştale (1918 - 1992) - 1 timbre.
1967
The 13th International Astronomic Union Congress, Prague
21. August WM: Niciunul Design: J. Lukavský Gravură: L. Jirka Perforare: 11¾
![[The 13th International Astronomic Union Congress, Prague, Tip ARW]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/ARW-s.jpg)
