Slovacia
Prezentat acum: Slovacia - Timbre poştale (1939 - 2024) - 1 timbre.
2019
International Mathematics Olympiad
7. Iunie WM: Niciunul Marimea foii: 50 Design: Ingrid Zámečníková Perforare: 11½
![[International Mathematics Olympiad, Tip ACK]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Slovakia/Postage-stamps/ACK-s.jpg)
