Norway
Now showing: Norway - Postage stamps (1855 - 2024) - 1 stamps.
1964
The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage
11. březen WM: Žádný Perforation: 13
![[The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage, type GK]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Norway/Postage-stamps/GK-s.jpg)
![[The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage, type GK1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Norway/Postage-stamps/GK1-s.jpg)
