Re: Colt 1851 Navy
First, you need to be sure that it is a Colt.
The only way to be sure it came from the factory like that is to get a factory letter. Colt charges (running on memory here, the link I had to the price list is not good anymore) a minimum of 200 dollars to research a cap-n-ball revolver. If they find out there was anything "special" about it, they tack on a higher charge. If it was factory engraved - that info costs more. If the gold inlay is factory, that adds to the letter price. If it happened to have been bought by somebody famous (Bill Hickok, US Grant, JEB Stuart, like that) it add a whole bunch to the letter price. Probably worth it, though, 'cause a letter can add a butt-load of value to the gun.
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