Year Colt Ace Serial Number Range Colt Service Model Ace Serial Number Range
1931 1
1932 4000
1933 4400
1934 4972
1935 5950 SM1
1936 6150 SM10
1937 7150 SM50
1938 9000 SM491
1939 9550 SM453
1940 10250 SM901-SM952 / SM1120
1941 10500 SM1550
1942 Limited or No Production SM2715
1943 Limited or No Production Limited or No Production
1944 Limited or No Production Limited or No Production
1945 Limited or No Production SM3725-SM13803 (End of Production)
1946 Limited or No Production
1947 10790-10935
*Ship Dates are not in sequential order. A Colt Archive letter would be required to confirm.