Østrig
Viser nu Østrig - Post frimærker (1850 - 2024) - 1 frimærker.
1961
The 75th Anniversary of Sonnblick Observatory
1. september VM: Ingen Design: H. Ranzoni D.J. Perforeringer: 14½ x 13¾
![[The 75th Anniversary of Sonnblick Observatory, type XS]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Austria/Postage-stamps/XS-s.jpg)
