The 100th Anniversary of the Geneva Conference on Organic Nomenclature 1992
Now showing: Switzerland - Postage stamps - 1992 - The 100th Anniversary of the Geneva Conference on Organic Nomenclature - 1 stamps.
1992
The 100th Anniversary of the Geneva Conference on Organic Nomenclature
24. March WM: None Design: Burkard Waltenspül. Engraving: Courvoisier. S.A. Perforation: 11¾
![[The 100th Anniversary of the Geneva Conference on Organic Nomenclature, type BEF]](https://www.stampworld.com/media/catalogue/Switzerland/Postage-stamps/BEF-s.jpg)
