Need hyelp identifying this one
 

Dear Luger-meisters,
I've taken a hard look at the markings on this gun and cant seem to place it in any category. It only has 2 or 3 useful markings:
1- DMW as manufacturer
2-Serial number 4478
3- "18" on back of extractor

No numbered parts anywhere else. I believe some markings may have been filed out. Please let me know if you have any ideas about its origin.

I think they have all been lost to the buffing wheel.

its going to be hard to tell with out more photos, the gun has been buffed to the point that it has lost most of its markings.

It also looks like it saw police service in its life by the cut for the mag safety on the side of the frame

Jim

Thanks JTD and jamese,
What other views would be helpful?