Purchased a pistol today, from a friend who is selling. I need some help from the 1911folks, I think I have a older, custom 1911, built on a Govt model Colt. Pistols front sight extends past the muzzle about an inch. Rear sight is adjustable, and marked Bo-Mar. Has a set of target grips that have an adjustable hand rest and a very large thumb rest on the left grip. I知 pretty sure this setup for one hand shooting. Where it gets really interesting is inside the slide, on the third rail, it痴 marked I.E. Clark, Shreveport LA, along with what I think is a build number, and a date 10/61.. I understand the I.E. could be J.E. But it sure looks like an I.. Pistol also has stippling on the front strap.. Anybody know what this pistol is?