Turnbull does restoreations, but not necessarily accepted by collectors, and so costly, it is only reasonable for firearms where many $1000 are considered. Point is, WHY f/u a perfectly good collector piece, by ditzing around shooting it, when you can sell it to a collector, make some bucks on it, they are happy with getting it, and you are coming out on top, as can get a shooter, and ammo, etc. See Dr. Vette's remarks about the unrestored cars worth more too. I have a friend here, professional mechanic, who restores cars. NOT inexpensive. Just respect the gun and what it is, and let a collector who will appreciate it have it, and go use the money for a shooter, if that's what you want.