There was an organization called Kamporganisasjon. This literally translates into 'Fight Organization' and these were the shock troops, the equivalent to the SA.

Of course, they would have their own pins.

Here is the pin that came with this collection, numbered 4704.

KO Pin Front - 4704.JPG (40.66 KB, 444 downloads)
KO Pin Front Closeup - 4704.JPG (40.16 KB, 446 downloads)
KO Pin Rear - 4704.JPG (40.2 KB, 444 downloads)
KO Pin Rear Closeup - 4704.JPG (39.5 KB, 445 downloads)

Always looking for Eickhorns and etched bayonets.