Thanks Ted... Have not heard further since posting.
This pistol is a bit puzzling. The frame doesn't look re-blued. It's crisp and sharp and has what I would expect from an original blue finish.
I'll add some pictures here. The receiver does have a deeper more shiny shade of blue, and the E/N proofed toggle train has a similar finish. The edges of the toggle are slightly smoothed, so that (and the blued safety bar and recoil link) point to a re-blue at some point.
But the pistol is in such "new" condition (Including a pristine bore) that I wonder when it was done. The barrel to receiver witness mark also doesn't lineup perfectly.
From
Joop's comments on Jan Still's forum, "out of sequence" Lugers made up from obsolete replacement parts in the May 1942 timeframe are known in my serial number range, and this is likely one of them.
I wonder if the re-bluing of these parts was done as part of the process of finishing off these final Lugers from Mauser. All the marks on this pistol look like they were done with original Mauser dies.
I'm now starting work to understand details of available archival material to see if it mentions anything.
Marc
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Igitur si vis pacem, para bellum -
- Therefore if you want peace, prepare for war.