I am the original owner of a early 80's Scoremaster in 45 ACP. It also has a factory fitted 451 detonics mag barrel with receiver serial number engraved on it. The slide was marked by the factory showing both calibers. I still have the original box, papers, spare front sight, oiler, unfired 451 mag brass in the red plastic and labeled box. I have 6 of the Detonics stainless 8 round mags (made by Metal form I believe, however they have no markings. I have 6 replacement magazine springs from the factory for the 8 round mags. I have the original factory reloading manual for the 451 Mag with a factory disclaimer cautioning the use of some of the data. I haven't found much info on prices on such a package. Does anyone know the values. I carried the gun in law enforcement for about 10 years. Minor holster wear on the slide. Any info would be appreciated.