Østerrike
Viser nå: Østerrike - Postfrimerker (1850 - 2024) - 1 frimerker.
1999
The 100th Anniversary of the Austrian Patent Office - 1899-1999
16. April VM: Ingen Arkstørrelse: 50 Design: K. Pach/W. Pfeiler Perforering: 13¾
![[The 100th Anniversary of the Austrian Patent Office - 1899-1999, type BRN]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Austria/Postage-stamps/BRN-s.jpg)
