Some new finds

[Ben M.]

very skinny frame ramps. is this mistake?

[ithacaartist]

Originally Posted by Ben M.

very skinny frame ramps. is this mistake?

I think it's a frame used by Mauser to fine tune the shape of the ramps for the intended future production of 9 mm pistols. IIRC, the dimensions/contours of the ramps, initially derived from the Swiss "recipe" and tooling which was passed to Mauser didn't do so hot to make the pistol function. Looks like gunsmiths/engineers ground the ramp faces until they were just right, then adjusted the new frame's design to match.