Attached photo is of a gunbroker auction from a few months ago. I will venture a theory about a higher polish and finish eagle f pistols that look original. Maybe Mauser had left over rejected parts from earlier production that they used to make up production late in the war. So you could have a few higher polished guns. Just a theory of course
I suppose anything is possible, but the expanded [somewhat fuzzy] photo of 947113 looks like it is ribbed (not polished), just without any grip strap finish left, and with a deep succinct serial number. It looks original to me.
Theories, or course, are put forth to explain things, assuming they hold up. If there were rejects of earlier high polish frames, why reuse them on a late war Police contract. The factory was still making Army and Commercial models and it seems to me that the Police could be the pickier of the three customers and if they were rejected frames, they were rejected for a reason. Seems to me that rejected frames would be used on Commercial, not Police.