Need a detailed description of all features and markings.
About 1913 for a Colt police positive special with that serial number.
Per proofhouse.com , with that serial number, it was made in 1977.
Impossible to answer without the serial number.
Serial number is needed to answer.
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.
Impossible to answer without the serial number.
A Colt police positive .38/bankers special with that serial number was made in 1934. A Colt police positive special/detective special with that serial number was made in 1928.
A Colt police positive special with that serial number was made in 1964.
I would say that with the serial number 1321XX,we are looking at your shotgun being made by ithaca(who made the lefever nitro special) in 1924.
Found a Colt police positive special C55457 made in 1973, no serial number starting with G.
The police positive special list I have shows a D before your listed serial number. If that is the case then it was made in 1968.