I have a Finnish M23 Luger (serial # 82XX m) that has a unit marking on the backstrap. It reads: "KKE/E.22" The last "2" is very faint and I didn't see it until I looked at the photo. The pistol has mismatched part numbers and is import marked. I'm not sure if the barrel is original to the gun as the barrel has no markings (besides the import mark). However, the index mark of the barrel and upper line up, it is in the original .30 Luger caliber, and it has the German style front sight blade.
I found another gents Finnish Luger that has a similar unit marking here:
http://luger.gunboards.com/showthrea...-unit-markings
Is anyone able to shed some light on the meaning of this unit marking?
Here are pics of mine: