Sorry, I meant Truly's office, or "at the PD" as you said here:
I'm merely attempting to find a rational reason that Weitzman examined a Mauser.....
There's not a shred of doubt in my mind that Weitzman was in fact describing a 7.65 Mauser for the FBI agent who filed the report which describes a Mauser in detail. ( Wonder why the serial number on that mauser was omitted??? )
Either someone ( Fritz? who was senile) or the FBI agent procured a Mauser ( from somewhere ??) and thought that it was the rifle that had been recovered from beneath the boxes of books.
I find it very strange that they had Weitzman examining a loaded rifle. Weitzman said that Fritz unloaded a live round from the Mauser when he came and reclaimed the rifle....