With Lefever, I could see this being a totally original gun. A 20 gauge Damascus barrel is so scarce, I can't see it being a put together gun. Good doll's head and water table fit pretty much precludes a put together gun. Fire a couple of shells with primers in them to see if pins are centered on the chamber centers. We would like to see more of this gun. I would buy this gun. If you pass on this one, PM me the location.