You will have to call Colt with the sn to find out.
Serial numbers dont go that low on Offical Police revolvers. Need to know caliber,barrel length,barrel markings,etc.
A Colt official police with that serial number was produced in 1943
A Colt official police special with that serial number ws made in 1947.
Your Colt official police special was made in 1956.
That Colt official police special was made in 1968.
Colt official police with that serial number was produced in 1927
Could not find an official police special .38 with that low a serial number.
A Colt official police with that serial number was made in 1948.
1940
Around 1941 for Colt official police
Your colt official police was made in 1967.
Your colt official police was made by colt in 1940.