I have a buddy who wants to sell me a 3rd edition Colt Det. Spl. nickle finish. It has sat in a leather holster for over 20 yrs. All the area of the pistol that was actually inside the holster, has taken on a satin looking finish. From about the rear of cylinder to the back, its super shiny. I actually like the satin look, is there a way to get the rest of the shiny part to match? Not sure what can be done to nickel finishes. I really dont like shiny finishes.