1940 Luger de-value question

[Dave Sanders]

I just picked this up today from a grandson of the owner, I just couldn't pass up a Luger out of the wilds, I'm sure you guys know that feeling. It is a really nice Luger, all matching including one mag, the second mag is another number. But, under the barrel are some scratches and a ding or two. The story is, ( I know) the grandpa used the barrel to break out a window, and then knocked the jagged edges off with the Luger. The scratches, to me, do kind of look like that could have happened. In any case, how much of a value loss would that do to an otherwise pretty nice Luger? It doesn't bother me, but I know a purist might really frown upon it. Also, The holster is a 41 date holster, and I don't know if the loading tool is original or not, it is unmarked. Who knows if the grandpa added to it back in the day with those or just what. Anyway, I would appreciate your thoughts on this rig. It is an extra to me, so I might sell it down the road and wanted to know these thing.
Dave