The 10th International Congress of Mathematics in Innsbruck 1981
Rāda: Austrija - Pastmarkas - 1981 - The 10th International Congress of Mathematics in Innsbruck - 1 marka.
1981
The 10th International Congress of Mathematics in Innsbruck
14. septembris SV: Neviens Lapas izmērs: 50 Dizains: V. Wurnitsch Perforēšana: 14¼ x 13¾
![[The 10th International Congress of Mathematics in Innsbruck, veids ATY]](https://www.stampworld.com/media/catalogue/Austria/Postage-stamps/ATY-s.jpg)
