Your colt was made in 1973.
Proofhouse.com has serial number tables for Colt.
1948
You will have to call Colt to find out. You will have to call Colt to find out.
You can find out at Proofhouse.com in the Colt tables.
@ 1966. Call Colt and they can tell you.
You will have to call Colt to find out.
around 1978
Proofhouse.com has Colt sn data.
Produced in 1972.
about 1966
Impossible to answer without a serial number.
Would need serial number to answer.