100-1000 USD depending on EXACTLY what you have
Army special & officers model officers model special single action army & bisley revolvers police positive .38 bankers special police positive special & detective special
No published sn data.
For $30, you can get a factory letter that will tell you in what configuration it left the factory, when, etc., and a short history of the model.
A fine revolver.
The "J" frame is the Smith & Wesson small frame revolver such as the model 36 .38 special. The smallest frame, as in the model 36 Chief's Special.
That model was produced in 1922.
You do not say if you have a police positive in 38 special or a 32 cal & target model,or a police positive special.So if you have a 38 special police positive it was made in 1929,if you have a 32cal& target model that was made in 1927,and if you have a police positive special model that was made in 1923.
Would need model name to answer.
@1972
Colt did not produce a model specifically designated as the "3220 knee action police double action revolver." However, Colt is well-known for its double-action revolvers, including the Colt Detective Special and the Colt Python. If you're referring to a specific model or feature, it might be a misinterpretation of another Colt revolver or an entirely different manufacturer.
S&W did not make a model called "police special",
if your revolver is an official police 22 cal. model then it was made in 1947