Good Morning guys I have a few questions but they may be hard to answer. I have come across a 1972 Deluxe Mark V 300 Weatherby that came from the weatherby custom shop engraved with gold inlay high gloss walnut stock engraved floor plate the whole 9 yards. It says it has been accurized from the weatherby custom shop, what exactly does Accurized? Mean/include. What would a gun like this say 80-90% be worth ball park?