Above is something you may have never seen before. It is one of about 20 prototype pistols made during WW2. This was thought up to save time and cost on producing 1911s for the war effort.
Springfield Arsenal stamped the slide and frame and some other parts. The gun used the same barrel and magazines as a standard M1911/M1911A1. The result was not very handsome. Probably resulting in the suicides of everyone involved after they saw the finished product and thus explaining why it was never put into production.