Østerrike
Viser nå: Østerrike - Postfrimerker (1850 - 2024) - 1 frimerker.
1961
The 75th Anniversary of Sonnblick Observatory
1. September VM: Ingen Design: H. Ranzoni D.J. Perforering: 14½ x 13¾
![[The 75th Anniversary of Sonnblick Observatory, type XS]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Austria/Postage-stamps/XS-s.jpg)
