Slovakia
Viser nå: Slovakia - Postfrimerker (1939 - 2024) - 1 frimerker.
2018
The 50th Anniversary of the International Chemistry Olympiad
15. June VM: Ingen Arkstørrelse: 50 Design: Robert Jančovič Perforering: 11½
![[The 50th Anniversary of the International Chemistry Olympiad, type ABN]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Slovakia/Postage-stamps/ABN-s.jpg)
