Where do you find collectible value guides?
KeyMan Collectibles is An online source for information on vintage and modern day baseball memorabilia and collectibles. A baseball memorabilia price guide, with collectors guides and references.
I will leave a link below to Keymancollectibles.com, and the collectors showcase.
In the case of a collectible firearm, a HUGE part of the value is based on condition and originality. It is impossible to offer a value without a hands on appraisal of the firearm. You need to find a dealer in collectible antique arms to examine the gun, and give you a valuation- it is simply not passible at long distance.