International Exhibition of the Works of Youth Inventors, Plovdiv 1985
Now showing: Bulgaria - Postage stamps - 1985 - International Exhibition of the Works of Youth Inventors, Plovdiv - 3 stamps.
1985
International Exhibition of the Works of Youth Inventors, Plovdiv
23. September WM: None Perforation: 13
![[International Exhibition of the Works of Youth Inventors, Plovdiv, type DRL]](https://www.stampworld.com/media/catalogue/Bulgaria/Postage-stamps/DRL-s.jpg)
![[International Exhibition of the Works of Youth Inventors, Plovdiv, type DRM]](https://www.stampworld.com/media/catalogue/Bulgaria/Postage-stamps/DRM-s.jpg)
![[International Exhibition of the Works of Youth Inventors, Plovdiv, type DRN]](https://www.stampworld.com/media/catalogue/Bulgaria/Postage-stamps/DRN-s.jpg)
