You will have to call Colt with the sn to find out
Revolver or semi-auto?
Proofhouse.com has Colt sn information.
Around 1921 for a 1903 colt hammerless .32 with that serial number.
about 1922
Yes.
made about 1915
It would be 90 years old. If it is a Colt 1903 hammerless .32 , it was made in 1921.
Not enough information. Serial Number? Markings? Type of grips? Finish (blue, parkerized, nickel)? Overall condition? Does it have the orignal box and papers? Does it have a Colt letter? Price range could be from 100- 1000.
You must call Colt to find out.
100-1000 USD
You find a gunsmith who does blueing and let them do it.