Here's a very quick study on the tooling marks found on P-08 and LP-08 Luger frames.
It's clear that the toolings built by DWM and by the Erfurt arsenal were different, utilizing different milling techniques.
The DWM Equipment that went to Mauser used the same milling technique.
The Erfurt Equipment that went to Simson used the same milling technique. I expect that Krieghoff frames would show the same.
Here are the photos in order of year of manufacture:
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I wonder what the Swiss and Vickers tooling looks like here?
Marc