Østrig
Viser nu Østrig - Post frimærker (1850 - 2024) - 1 frimærker.
1981
The 10th International Congress of Mathematics in Innsbruck
14. september VM: Ingen Arkstørrelse: 50 Design: V. Wurnitsch Perforeringer: 14¼ x 13¾
![[The 10th International Congress of Mathematics in Innsbruck, type ATY]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Austria/Postage-stamps/ATY-s.jpg)
