Erik Boeré Philatelie : Postzegels te koop - Noorwegen
Wordt nu getoond: Noorwegen - Postzegels (1855 - 2024) - 4 postzegels.
1964
The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage
11. maart WM: Geen Perforatie: 13
![[The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage, type 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, type GK1]](https://www.stampworld.com/media/catalogue/Norway/Postage-stamps/GK1-s.jpg)
1964
The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage
11. maart WM: Geen Perforatie: 13
