Maker of gun, Belgian?, gauge, barrel length, stock length, chamber length, condition of bores, wall thickness, in proof or out are just a few of the things you need for a real valuation. It has a trivial chip on the stock which should not be that big of a deal. It is a nice looking gun but buying on looks is like marring on looks. Liable to get you a good looking, ex-wife.
OK, this is being advertised for a senior but will try and get those question answered. Current description is turn of century Belgian 12 gauge boxlock with 27 1/2" barrel. Bores are described as very bright. Thanks!