Greeting to Iceland, and God bless during the difficult times.
As you might know, your Luger is made by 'Deutsche Waffen und Munitionsfabriken'.
When it comes to the unit mark and such.. since I have a memory like a hippo, this came to my mind:
http://forum.lugerforum.com/showthre...threadid=19133
I quess it's the same gun?
..no year stamped over the chamber?