Help me Identify this Luger

[jeb111]

I wonder, this pistol looks like it started out as a commercial and then was placed into military service or meant to look like it, the take down latch is stamped in two places, looks refinished as I can’t see any halos. Commercial c/n stamp on left of receiver and a waffenamt on the right side the kind I’ve never seen on a Luger frame that way. Magazine needs a serious cleaning. Parts gun? Need more and better pictures. I’m sure some experts will chime in soon.
Jim