Impossible to answer without a detailed description of all features and markings.
Inexpensive Italian copy of a Colt revolver. Value $75-$100 in excellent condition. Some also had a second cylinder in .22 Magnum- add $15 for second cylinder.
Impossible to answer without a DETAILED description. Could be from 50-500 USD
.22 cal
The Book of Colt Firearms by R. L. Wilson. Alternatively, you can request a history letter from Colt.
your colt official police was made in 1958.
model should be on top of barrel or side.......................
300-500
200 USD
50-65 USD
50-200 usd
if your revolver is an official police 22 cal. model then it was made in 1947
Go to proofhouse.com. It is a Peacemaker 22 Model from the early 70's.