DDR
Now showing: DDR - Postage stamps (1949 - 1990) - 1 stamps.
1973
The 15th Anniversary of the Periodical "Probleme des Friedens und des Sozialismus"
11. September WM: None Perforation: 14
![[The 15th Anniversary of the Periodical "Probleme des Friedens und des Sozialismus", type BEK]](https://swmedia-4cd6.kxcdn.com/media/catalogue/DDR/Postage-stamps/BEK-s.jpg)