(NSB) Nederlandsche Heemkunst cultural Odal-rune runic brooch.
In good condition!
A little background:
The “Nederlandsche Heemkunst” sold a small series of runic brooches / Cultural N.S. Jewelry with old Germanic designs during the wartime years in the Netherlands. These brooches themselves are very hard to find. Only very few surface per year on the collectorsmarket.