Beautiful
"Colt: S/N 756,734 to 857,000 = 1942 (S/N's 856,405 to 916,404 were also duplicated by Ithaca but will have "F.J.A." Ithaca inspection initials"
"S /N C208800 to C215018 1942 6219
Production Stopped because of World War II. Commercial models converted to military use except for limited production of Service Model "ACE" with S/N's around SM2715.
.22 to .45 Conversion Units made from S/N U1400 to 1700.
In 1943, commercial models used to fill military orders. A limited amount of Super 38 & Super Match 38 produced. .22 to .45 Conversion Units made S/N U1701 to S/N U1750.
In 1944 no commercial peroduction of any kind recorded.
S/N SM3725 to SM13803 Service Model "ACE" .22 made, some gaps in numbering
produced in 1945. Commercial production resumed in 1946."
From:
sightm1911
Your gun's brother.