RE: Scope mounts for WWII mauser
You won't be able to mount a regular set of mounts on it unless the bolt handle's been altered. If the gun hasn't already been "sporterized", and is in good condition, and all the serial numbers match, I'd say you've got a collector's item and you'll have to think hard about modifying it. If it has been "bubba-ed" or the serial numbers don't match, Id say go ahead and have a gunsmith modify it and put regular mounts on it.