Hi everyone. New joiner here, first post.
I have a 9mm 1917/1920 DWM and have been photographically recording markings and looking them up.
All numbers match, including internal small parts, except for a WWII magazine, and grips.
The four-digit serial number is 10XX with no suffix letter. The right receiver has the normal German military receiver proofs of 1914-1918. It appears to be left to right crown over T, crown over S, crown of S etcetera. The left-most stamp (crown over T) is overstamped with an eagle of horizontal wing depiction, no pendant, under which is HZaJt3 which I have now learned was a Berlin depot responsible for storage, issue and repair. To the extreme right is what looks like a Simson-style eagle (no pendant) under which is Za(illegible)t....another depot marking.
Left receiver bears only the last two digits of the serial number. Front strap of grip is unmarked.
I would describe condition of gun and grips at least very good, but also would mention any straw-colored parts are not bright nor of any depth. A friend who has a Luger remarked how much tighter it is than his.
The four-inch (carefully measured from muzzle to bolt face) 8.82 gauged barrel has a 42 stamped just forward of the witness (witnesses sharply appear single strike, perfectly aligned). To the left of the 42 is what could be a 4 with the vertical leg missing. It is far enough to the left of the 42 as to look unrelated. The font appears slightly smaller than the 42, but could be attributed to a lighter strike. Farther forward of the barrel serial number is an eagle-like stamp with horizontal wing representation devoid of pendant. There is an capitol script M on the front of the receiver below the barrel and receiver serial number.
I should add that the barrel is a finer finish than the rest of the gun...metal more finely polished and the bluing is blue, as opposed to the rest of the pistol being a duller, more blackish bluing and surfaces more coarse. It appears that this is not unusual judging from many viewed photos.
There is no sear safety, and no magazine safety interlock. Toggle bolt remains open on an empty mag.
I am surmising the initial receiver stamps are proper, and the overstamping and what appears be additional stamping is by the Weimar Republic added at the time of the 1920 receiver top stamp. I am wondering if the pistol was again proofed by Mauser in 4/42 or the barrel has a Mauser issuedconnection. I don't think it was refurbed/reissued to WWII military as I can find no Third Reich eagle/swastikas.
Thanks for any information. :-)
ETA: The top of the frame has a flat notch approximately 3/32' X 7/16' across it, leaving that portion of the barrel shoulder flange exposed. Haven't located anything about that yet.