Help with info on Luger P.08

[Joek75]

I was hoping some people with more experience can help me figure out exactly what I have here. I know it isn't a numbers matching Luger and I was told by the guy I bought it from that it was refurbished by Mauser in the 50's. Any information is appreciated.
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[Joek75]

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[Von_Richthofen]

Looks like a prewar Mauser receiver with a mid war toggle and frame. Mauser switched to the BYF factory code the final two years of production (41-42). Early Mauser acceptance stamps were 63 and later 655 and 135 till the end of the war. So as stated a postwar rework.. Go and shoot it!