Dwm reissue

[foxdoublegunner]

Gentlemen,
I have posted this to another well known luger site but thought that it might get additional visibility here. In my quest, I have run across a 1916/1920 stamped DWM that I would like your opinion on. I believe that it may be refinished as it is in excellent shape but the finish looks well done so perhaps it was a period re-finish?. There are tooling marks evident in the rear of the receiver but I am suspicious of the depth of some of the numbering. It doesn't have an import stamp, all of the parts visible are matching and the bore is good-excellent. If it is a period refinish does that drop it's value down all the way to that of a shooter? Does the 1920 stamp diminish the value or is it considered just another part of the pistol's history?

Thank you