Sveits
Viser nå: Sveits - Postfrimerker (1849 - 2024) - 1 frimerker.
1982
International Water Quality Association
23. August VM: Ingen Arkstørrelse: 50 Design: Werner Muhlemann Gravering: Courvoisier. S.A. Perforering: 11¾
![[International Water Quality Association, type AVG]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/Postage-stamps/AVG-s.jpg)
