International Year of the Periodic Table 2019
Now showing: Bulgaria - Postage stamps - 2019 - International Year of the Periodic Table - 1 stamps.
2019
International Year of the Periodic Table
24. June WM: None Sheetsize: 40 Design: Svetlin Balezdrov Perforation: 13
![[International Year of the Periodic Table, type HGE]](https://www.stampworld.com/media/catalogue/Bulgaria/Postage-stamps/HGE-s.jpg)
