A 700,000 range 20 gauge Model 12 with a vent rib is not "original" in any stretch. First vent ribs were 1954. The 20 gauge was never made with a "milled" rib post either. The gun in question is not worth anywhere near the $1500 asking price. On another point, anyone can cut a flare into the end of a cut barrel. It is quite hard, however, to put a few thousandths of choke behind the flare on a cut barrel. I would guess that the locals who think the gun is an original 24" gun have never seen a bore micrometer, or spent $1500 on a shotgun.