The 11th Congress of the International Association for Bridge and Building Construction 1980
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1980
The 11th Congress of the International Association for Bridge and Building Construction
1. September WM: None Sheetsize: 50 Design: Otto Stefferl. Perforation: 13¾
![[The 11th Congress of the International Association for Bridge and Building Construction, type ASX]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Austria/Postage-stamps/ASX-s.jpg)
