your colt detective special dates to the year 1949 by the serial number provided.
In 1931
1968
That does not seem to be a serial number for a Colt DS.
The Colt detective special was derived from the Colt positive special in 1927and the starting serial number for that year was 331000 so the serial number you show of 3021 does not match up as a Colt detective special. Now if the serial number was 383021 then it was made in 1930.
No such serial number for the Colt detective special, please resubmit.If you mean 700200, than 1957 would be the year. If you mean 700020, it would be the same, 1957.
It was produced in 1974.
about 1973
You will have to call Colt
It was made in 1971.
You will have to call Colt to find out.
About 1977.