E-Ed,
Very good and useful pictures. The lack of an Imperial firing proof on the barrel, and the c/N commercial proof, is good evidence that the barrel was replaced. Interesting, in that proofing and complete barrel marking--proof and caliber measurement-- is not usual for rebarrelled export guns, all the more in that the gun was German commercial proofed in a country in which 9mm caliber and barrels over 3 3/4inches were not permitted by the IMKK regulations from the Treaty of Versailles. The m/m mark is not the customary caliber designation notation.
The right receiver marks are completely as would be expected for an Imperial military DWM Luger fom the middle of 1912 through 1918.
If I had this gun in my hands, I would be looking very closely to see if there is any evidence that the receiver notch was added during rework (also not an expected rework feature), and if there is any evidence that the rear toggle link was modified or replaced.
This is a very cool Luger, which provides the kind of tests of observation and logic which I find really attractive.
--Dwight
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