Sorry the records I have only go up to 1978 and there is no serial number for a colt detective special beginning with the letter P up until that time.
about 1973
Please check your serial number or model number because the detective special does not show a AE prefix to the serial numbers in my records.
Colt Detective Special serial numbers do not end in two letters. If you are positive the last two are "RD", you need to call Colt.
Your serial number doesn't have enough numbers. The starting serial number in 1978 was S01001.
your colt detective special dates to the year 1949 by the serial number provided.
Are you sure the serial number is correct? The Colt detective special was first produced in 1927 with a starting serial number of 331000,The Colt police positive special from which the Colt detective special was derived from with the serial number 153817 was made in 1918
The serial # can be found inside on the frame and the crane when you open up the cylinder. The two numbers should be the same.
Impossible to answer without the serial number.
Serial number is needed to answer.
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.
A Colt detective special with that serial # needs a letter either before or after it. Nothing that low before 1970
Production date is 1977 for serial numbers: 19201M-59999M. Don't know what the X is.