RR got into the 1911 making business in 1942 with a government contract. They had zero experience in that endeavor and promptly set up an new division to build them. Another company with no experience in firearms was also given a contract to build 1911s for the war effort; Singer Sewing Machine. Then there was Utica, High Standard and maybe a couple of others.
A friend of mine got a High Standard through the NRA/CMP program. I missed a chance on a Singer at O'Bar's Guns here in SA years back. The Army issued me a Utica and a Colt at different times.