Bulgaria
Now showing: Bulgaria - Postage stamps (1879 - 2024) - 1 stamps.
2012
International Year of Chemistry
28. November WM: None Sheetsize: 50 Design: Martin Rusev Perforation: 13
![[International Year of Chemistry, type GTV]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/GTV-s.jpg)