Slovakia
Viser nå: Slovakia - Postfrimerker (1939 - 2024) - 1 frimerker.
2017
International Physics Olympiad - Yogya, Indonesia
10. February VM: Ingen Arkstørrelse: 50 Design: Zdenek Netopil Perforering: 11½
![[International Physics Olympiad - Yogya, Indonesia, type AAE]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Slovakia/Postage-stamps/AAE-s.jpg)
