The 150th Anniversary of the Austrian Academy of Sciences 1997
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1997
The 150th Anniversary of the Austrian Academy of Sciences
21. February WM: None Sheetsize: 50 Design: R. Bahnmüller. Perforation: 14 x 13¾
![[The 150th Anniversary of the Austrian Academy of Sciences, type BOW]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Austria/Postage-stamps/BOW-s.jpg)
