The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage 1964
Most látható: Norvégia - Postaköltség bélyegek - 1964 - The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage - 2 bélyegek.
1964
The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage
11. március Vj: Senki Fogazat: 13
![[The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage, típus GK]](https://www.stampworld.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, típus GK1]](https://www.stampworld.com/media/catalogue/Norway/Postage-stamps/GK1-s.jpg)
