I purchased one at the Dixie show from a privite collector for $550 but the Festad Blue book of gun values should be of more help.
If your Colt official police is chambered in .22cal?Then it was made in 1937.
If it is chambered for it.
Experience and Blue Book of Gun Values.
Harrington and Richardson revolver chambered in 32 Smith and Wesson
Experience and Blue Book of Gun Values
value depends on overall condition....................
16
made about 1969. value depends on overall condition
If chambered in 45ACP
DO NOT ATTEMPT THIS!! Never fire ammuntion in a weapon that it is not chambered for.
Revolver made by D Wesson chambered for 357 Magnum
DA revolvers have been and are chambered in 357 magnum as have SA revolvers