Anywhere between 1952 & 1953 depending on the rest of the serial numbers.In 1953 the serial numbers started with 825300.
Colt official police with that serial number was produced in 1927
A Colt official police with that serial number was made in 1948.
1959
about 1959
what is the manufacture date of a .38 police positive special serial number b 81
Proofhouse.com has Colt sn data 100-400 USD
Colt police positive special was made in 1915
Around 1951.
Your Colt official police special was made in 1956.
That Colt official police special was made in 1968.
Colt official police with serial # 904734 was produced around 1965
A Colt official police special with that serial number ws made in 1947.