Around 1916 for a police positive special and 1920 for a police positive .38.
1923
The Colt police positive .38 with sn 8707 was produced in 1906.The second year of production.
Depends on which Police positive with that serial number: Police positive special in 1919 Police positive .32 & target in 1922 Police positive .38 in 1928
Depends on what police positive. A police positive .38 was 1905 , a police positive special was 1908 & a police positive .22 target model G & C was 1910 based on serial number 1655.
Police positive special=1919, Police positive .32 & target-1920,or Police positive.38-1924
Police positive .38 with that serial number was made in 1908.The police positive special with that number was made in 1910.
A Colt police positive .38 and a Colt police positive special with that serial number were both made in 1913.
A Colt police positive .38 with that serial number was made in 1931 and a Colt police positive special with that serial number was made in 1928.
A Colt police positive .38 with that serial number was made in 1930. A Colt police positive special with that serial number was made in 1928.
Take your pick: Police positive .38 in 1916. Police positive special in1913 and Police positive .32 in 1911.
Colt police positive special in 1909, Police positive .38 in 1908
About 1929. for a police positive special and 1935 for a police positive .38