Thanks for the input folks. My dad bought a nice late 1950's - Early 1960's custom Mauser in .257 Wby yesterday and I am trying to figure out who made the barrel. Since its not marked "made by" anywhere its likely gonna be a "Moose Hunt" but I gots to try to satisfy my curiosity.
One peculiarity of the rifle/barrel is that the caliber is marked on the bottom of the barrel shank and the caliber, .257 Weatherby is burned into the barrel channel of the pseudo-Weatherby style stock.