I have acquired a Colt 1861 Model Navy Regular Production model percussion revolver. The loading lever is missing from the bottom of the barrel. The cylinder, hammer, and trigger work well. There are also 4 notches on one side of the handle and 3 on the other, I know this probably doesnt add value but adds to the mystique of the weapon. There is also an inlay on both sides of the handle that says "Chief". All of the numbers match on the weapon. The finish is surprisingly good for being dug up on a farm in Indiana in 1940. Trying to find an approx. value since the gun is not complete?