Go to proofhouse.com to find out when made by serial number.
Your question can not be answered as written. In order to answer in this forum, you will have to provide the serial number, at a minimum. It might have been possible to give a time period if you had provided a detailed description to include finish, caliber, etc. If you call Colt and give them the sn, they can tell you.
If you call Colt and give them the serial number, they will tell you.
You will have to call Colt and give them the sn.
YOu will have to call Colt and give them the sn to find out.
Model name needed to give answer.
Sometime in 1969. If you call Colt's Mfg., Inc. and give them the serial, they can give you the specific date. They will do this over the phone, while you wait.
The serial number you give is too low to be a Colt detective special. Colt detective specials were produced in 1927 starting with serial number 331000.They were cut-down versions of the Colt police positive specials. Now the Colt police positive special with that serial number was made in 1912.
Call Colt and they should be able to give you some basic info on the serial numbers and such but any additional info will cost about $75
proofhouse.com will give you the mfg date
Your question is pretty much not answerable as asked. Colt has made many handguns in that caliber in different models and variations of models. You also did not provide the serial number. If you call Colt and give them the sn, they can tell you.
made about 1958
You can find a serial number table at proofhouse.com. What do you want to know?