A Colt model 1903 hammerless .32 with that serial number was made in 1907.
You will need to call Colt to find out.
Check the frame.
Per proofhouse.com ,the Colt pocket positive with that serial number was made in 1917,making it about 92 years old.
Your serial number indicates that your Colt was made in the year 1928.
1920
If it is a Colt Vest Pocket model, 1921.
Just about no way to value a weapon with just the serial number.
made about 1928
@ 1866.
Colt model 1903 hammerless .32 with that serial number was made in 1931. About 78 y.o.
You will have to get it lettered by Colt to find out who it went to.
If it is the Colt model 1908 hammerless .25, then it was produced around 1915.