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.
about 1920
That serial number would put it as an Official Police made in 1968
A Colt police positive special with that serial number was made in 1964.
If it is a Colt police positive special, it was produced in 1910.
1964 Police Positive Special & Detective Special
1931
made about 1952
50 years ago
Proofhouse.com has Colt sn tables
Looking at My book "Colt An American Legend by R.L Wilson" The serial Number of your Colt Police Positive indicates it was manufactured in late 1930. Chuck L_ Dothan Al
you would need the serial number to look up date manufactured.......................
A Colt police positive ,32 with that serial number was made in 1909.As far as ammo,you can check with any gun shop.