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1905
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.
Colt police positive .38 with that serial number was made in 1908. Police positive special with that serial number was made in 1905., each 1st year productions.
1929
Police positive heavy frame: 1925 starts with Serial # 250000. Police positive special & Detective special: 1908 starts with Serial # 1 Police positive .32 & target: 1907 starts with Serial #495000 Police positive .38 & banker's special: 1905 starts with Serial # 1
about 1916
You can expect the value to be from $150 - $450 depending on the condition.
50-225 usd
10-500 USD depending on specifics
Depending on serial number, anywhere from 1905 to 1940.
About 99 years old, produced in 1911.