The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage 1964

Now showing: Norway - Postage stamps - 1964 - The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage - 2 stamps.

[The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage, type GK] [The 100th anniversary of the publication of the mass action law by the professors C.M.Guldberg and P. Waage, type GK1]
No. Type D Mint Condition Unused Used Letter/FDC
530 GK 35øre 0.54 - 0.54 - USD  Info
531 GK1 55øre 1.61 - 1.61 - USD  Info
530‑531 2.15 - 2.15 - USD 
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