1906 DWM Swiss Luger

[Doubs]

Originally Posted by Fred Patterson

Thanks so much for all the good info! Still wondering what that mark means. It’s on the barrel.

That is a shield with a diagonal mark across it. It's a DWM factory stamp that can be found on some early DWM barrels.

Here is a picture of the underside of a barrel of a Portuguese M2 Luger made within a couple of years of your Swiss Luger. Look between the circle-triangle stamp and the number 1. You'll see a lightly struck DWM shield identical to the mark on your barrel. It is partly covered by the other stamps.