A now-defunct company called Omega Defense Industries (O.D.I.) made a stainless DA pistol that utilized the Seecamp DA lockwork. Check under the right grip panel, and see if there isn't something stamped there. I built a pistol on an O.D.I. frame "kit", and my observations lead me to believe the ODI-produced guns were not of very good quality. I've seen two or three at gun shows, but couldn't be sure that they weren't also DIY projects. Colt pistols converted in Seecamp's shop might have some collector value, but the O.D.I. guns are not worth much to shooters or collectors. $500, tops.