Impossible to answer without the serial number.
about 1906
You will have to call Colt to find out.
do you have a selling price ??
The year of manufacture should be about 1884
If that is the colt combat commander, it was manufactured in 1962.
Proofhouse.com has Colt sn data
You will have to call Colt to find out.
You will have to call Colt to find out.
1897
@1972
1967
About 1921.