Impossible to answer without a serial number.
Don't know value, but made in 1926.
That Colt ds was made in 1975.
your colt agent was made in 1963.
about 1924
I found a Colt army special with that serial number being made about 1916.Don.t know the value though it would depend on it's condition.
You will have to call Colt
Your colt single action army was made in 1906.
No serial number provided.
Your colt officers special was produced in 1951.
A Colt police positive .38/bankers special with that serial number was made in 1934. A Colt police positive special/detective special with that serial number was made in 1928.
Colt single action army with that serial number was made in 1910
In 1965