The 100th Anniversary of Hans Kelsen 1981
Viser nu Østrig - Post frimærker - 1981 - The 100th Anniversary of Hans Kelsen - 1 frimærker.
1981
The 100th Anniversary of Hans Kelsen
9. oktober VM: Ingen Arkstørrelse: 50 Design: Adalbert Pilch y Alfred Nefe. Perforeringer: 14
![[The 100th Anniversary of Hans Kelsen, type AUC]](https://www.stampworld.com/media/catalogue/Austria/Postage-stamps/AUC-s.jpg)
