Colt Ace and Service Model Ace Serial Number Ship Dates

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.