Bulgaria
Ora in esposizione: Bulgaria - Francobolli postali (1879 - 2024) - 1 francobolli.
1977
The 21st Congress of the European Organization for Quality
10. Giugno WM: Nessuno Dentellatura: 13
![[The 21st Congress of the European Organization for Quality, Scrivi CNG]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/CNG-s.jpg)