OLD COLT: WE PROVIDE THE PUBLIC WITH AN ONLINE EDUCATIONAL RESOURCE FOR OLD COLT GUNS.
| YEAR | Approximate Serial Number SN Range |
| 1929 | 1-5850 |
| 1930 | 5350-10340 |
| 1931 | 9700-13670 |
| 1932 | 13600-14830 |
| 1933 | 14000-15200 |
| 1934 | 14400-17370 |
| 1935 | 16970-20020 |
| 1936 | 18900-24480 |
| 1937 | 22400-32140 |
| 1938 | 30720-34400 |
| 1939 | 33450-34450 |
| 1940 | 32200-36550 |
| 1941 | 36020-37730 |
| 1945 - 1946 | 32000-37835 |
| 1947 | 40001-56770 |
| 1948 | 56400-74050 |
| 1949 | 73350-78810 |
| 1950 | 78811-86400 |
| 1951 | 86370-95560 |
| 1952 | 95000-107450 |
| 1953 | 107000-112950 |
| 1954 | 112850-117779 |
| 1955 | 117780-120027 |
| 1956 | 120029-124780 |
| 1957 | 123950-129580 |
| 1958 | 129500-137200 |
| 1959 | 137000-150500 |
| 1960 | 148660-155300 |
| 1961 | 154500-159000 |
| 1962 | 158460-163200 |
| 1963 | 162270-167870 |
| 1964 | 167600-172000 |
| 1965 | 170850-177880 |
| 1966 | 177600-186580 |
| 1967 | 185850-192250 |
| 1968 | 191960-201360 |
| 1969 | 200870-202188 |
| 1969 | CS001001-CS003200 |
| 1970 | CS003000-CS005280 |
| 1971 | 202189-202388 |
Douglas G. Sheldon Colt's Super .38 - The Production History from 1929 through 1971Willernie, MN 55090
