Proofhouse.com has Colt sn data
That Colt official police was made in 1935,
Your colt official police was made in 1951.
Your colt official police was made by colt in 1940.
Your colt official police was made in 1939.
Your colt official police was made in 1967.
It is 74 years old, made in 1936
@ 80 years old
If your Colt official police is chambered in .22cal?Then it was made in 1937.
Colt official police with that serial number was made in 1937.
your colt official police was made in 1958.
Your Colt official police special was made in 1956.
It would be 81 years old. It was made in 1929.