Another Circle S, the mystery is safe, more questions!

[DonVoigt]

A friend of mine bought this circle S 1915/ 1920 property marked DWM some time back. Since he won't sell it to me, I "borrowed" it to
take some pictures and start this thread.

In Police Lugers, the authors state that circle S pistols seen are not re-worked; well this one is clearly re-worked. Of course it could have been re-worked After it was stamped with the circle S.

Here is what I see after a couple days looking!

Easy part, the magazine is a matching Haenel Schmeisser chrome with aluminum bottom, no proofs on the body or the base.

Grips have been changed, but the originals had no markings.

Had a sear safety, now removed; never had a magazine safety.

Receiver right side has Imperial proofs, left of breech block has a faint Aya4 proof.

Toggle train is a replacement, breech block, extractor, and striker
are #54, mid toggle link has all 4 digits, 6492 across over old number which was mostly scrubbed, rear of toggle is scrubbed with #92 applied.

Barrel no proof I can see, blue over 6492 h on bottom over 8,82.
Left side of chamber has 6492, with the circle S partially stamped over the 6.

Frame is 6492 stamped deeply over previous number which I believe is 8571 , the d suffix is present and easily seen. Side plate is original #71 over stamped with 6492, and is cut out for the sear safety. Safety lever, safety bar are # 71. Safety bar is cut back, and has an Erfurt inspection remaining, removed area then stamped with #71.

Trigger is Erfurt#64, and take down bolt is #20, i.e. not matching to anything else on the pistol.

Rear of receiver was scrubbed, and new # 1572. applied.

These circle S pistols remain a mystery to me, though I would like an example for my collection of police lugers.

Perhaps the details of this example will stimulate more discussion.

Ideas, comments, corrections, and additions welcome.

Now , lots of pictures!