Here's a picture of a Mauser that I'm tempted to purchase.
Its described as a "Postwar Bolo" and, from the photo (I haven't seen it 'in the flesh' yet), seems to have the right characteristics: 3.9 inch barrel, small grip, no hole through safety knob etc.
However, the serial number 828880 is outside the Bolo range of 444476-793350 (as quoted in System Mauser). 828880 would make it an early M-30, but that had a 5.2 or 5.5 inch barrel.
Confused? You bet. Any help would be appreciated.