Hi Rich, Your gun has been assembled from parts from different guns from different eras. It would take clearer photos than you have provided to properly identify these parts. While the top half is from a 42 byf (1942 Mauser) the frame is from a much earlier gun, possibly WW1. It should be marked P08 on the left frame, and it should have the distinctive Mauser bump. So, more photos please. Regards, Norm
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