"You would think finding 6 previously unknown WWII Military Model 12's that are marked totally different than any known to exist before would be great news. Guess again, this messed up the Collectors Book. No interest in adding a new chapter covering the rarest WWII Model 12's known to exist"

Perhaps they're just being cautious, as good researchers in any field should be. Until things are verified, you may have a rare exception, or you may have one that someone bought a bunch of as surplus, and modified - or one of many other possibilities. Research, done by fellows like the ones here who have chimed in about the model 56 under discussion, nailing down the details as much as possible, are what defines a true collector; at least to me.