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.
Would need serial number to answer or go to proofhouse.com and look it up.
your colt combat commander was made in 1972.
Can't find a serial number listed for combat commander starting with fos.
1974
That Colt combat commander 70BS69785 was produced in 1978.
In 1976.
Production date 1977.
Production date was 1976.
1978
1979
1978
1977
about 1978