Not enough info to even guess. If you can post the make and model, not just caliber and SN, and what is the information you are seeking- we might be able to make an educated guess.
Check the frame.
A Colt model 1903 hammerless .32 with that serial number was made in 1907.
Serial Number is 91953 Colt - 32 Police CTG Postive
Your serial number indicates that your 32 pocket positive was made in the year 1935.
about 1910
You will need to get a letter from S&W
Depending on serial number, anywhere from 1905 to 1940.
You will need to call S&W to find out.
Your colt was made in 1964.
Need a detailed description of ALL markings.
163974 J
Your model of the 32-20 was made bettween 1915 and 1940, but thanks to your serial number I can tell you that yours was made around 1920, give or take a year.