You will have to call Colt with the sn to find out
Colt official police with that serial number was made in 1937.
your colt official police was produced by colt in 1933.
Your colt official police was made in 1939.
A Colt official police with that serial number was produced in 1943
A Colt official police with that serial number was made in 1929.
Your colt official police was made by colt in 1940.
My records show that Colt official police .38 as being produced in 1932.
Colt official police with that serial number was produced in 1927
A Colt official police with that serial number was made in 1948.
Around 1941 for Colt official police
Your colt official police was made in 1967.
your colt official police was made in 1950.