The Colt police positive .38 with sn 8707 was produced in 1906.The second year of production.
Look on the butt of the revolver
Check the butt
police positive special made about 1920
37 years old. A Colt police positive special with that serial number was made in 1972.
That model was produced in 1922.
Yhe records I have show a Colt police positive .38 with that serial number as being made in 1908.
1919-1922
1907-1909
Check on the butt.
About 1959
Made about 1972, 37 years old, for a Colt police positive special with that serial number
1927