looks like it was made in the "s" block to me!
from the pics I saw of your gun, the FRAME was made by MAuser as evidenced by the "P.08" marking on the left frame flat area and the "Mauser Frame Bump". I believe it was originally a part of a 1941 manufactured "byf 41" Mauser Luger. All Artillery Lugers, as issued, would have strawed parts and with the DWM toggle it should have a DWM frame. It looks to me that the entire Lugers has been salt blued, even the graduated flat blade on the rear sight. This part should be polished in the white with rust bluing down in the numbers and graduated line markings if original. Should have fire blued grips screws, sear spring, toggle pins. Strawed trigger, ejector, magazine release button, take down lever. Wood magazine bottom (nickel or tin body), wood grips. See Erfurt example.
