Switzerland
Now showing: Switzerland - Postage stamps (1849 - 2024) - 1 stamps.
2011
International Year of Chemistry
3. March WM: None Sheetsize: 20 Design: Daniel Dreier. Engraving: Cartor Security Printing.
![[International Year of Chemistry, type CGA]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/Postage-stamps/CGA-s.jpg)