Seems plausible that this is what happened. Kind of like the mismatched serial numbers though. Now there's twice as much history to the weapon, even though it has no particular collector's value.C-Mag wrote: It's typical for German Mauser bolts and recievers to have different serial numbers. The practice in WWII by the Allies was that when Germans were captured and turning in weapons they were put in a line and told to remove the bolts from their rifles, then walked forward. The rifle was dropped in a pile with one hand, the bolt was dropped in a pile on the opposite side.
If you ever find a German Mauser with a matching bolt and receiver, you've got a very valuable weapon.
My other mauser has matching bolt and receiver though, it's been converted to 30-06, for use by the home guard, but the receiver and bolt is still unchanged. It's rare for the home guard mausers to have matching bolts and receivers, so it was probably common practice here on liberation day too.