On the first photo of that gun notice the apparent tool marks on the milled out flat behind the toggle cam-ramp area of the frame.
How common is it for this spot on the frame to be perfectly smooth without machine tooling marks and how common for there to be marks there?
My 1938 has some machine tool traces in that area, but I thought earlier guns would not. Or did WWI production guns show more tooling blems as well?
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