The 13th Congress of the Bulgarian Philatelist Association - Sofia 1981
Now showing: Bulgaria - Postage stamps - 1981 - The 13th Congress of the Bulgarian Philatelist Association - Sofia - 1 stamps.
1981
The 13th Congress of the Bulgarian Philatelist Association - Sofia
11. December WM: None Perforation: 13
![[The 13th Congress of the Bulgarian Philatelist Association - Sofia, type ]](https://www.stampworld.com/media/catalogue/Bulgaria/Postage-stamps/3068-b.jpg)
