Now showing: Bulgaria - Postage stamps (1947 - 1949) - 1 stamps.
1948
Stamp Day. The 6th Congress of the Bulgarian Philately Association
23. May WM: None Perforation: 11½
![[Stamp Day. The 6th Congress of the Bulgarian Philately Association, type QF]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/QF-s.jpg)
