The 9th International Congress of the Cement and Finished Parts Industry 1978
Now showing: Austria - Postage stamps - 1978 - The 9th International Congress of the Cement and Finished Parts Industry - 1 stamps.
1978
The 9th International Congress of the Cement and Finished Parts Industry
9. October WM: None Sheetsize: 50 Design: Otto Stefferl. Perforation: 13¾
![[The 9th International Congress of the Cement and Finished Parts Industry, type AQI]](https://www.stampworld.com/media/catalogue/Austria/Postage-stamps/AQI-s.jpg)
