if your pistol is of the model 1911 with serial number 189558 then it was made in 1917
by colt. If it is the revolver then the serial number is to high for the 1917 revolver.
1917
1917
made about 1917
1917
1917
it was made by Colt in 1917
Found a Colt 1903 hammerless with that serial number made in 1917.
Try proofhouse.com. Made about 1917........
if a 32 cal. made about 1917
1917 - Probably January based on production that year.
Google 1917 eddystone, then find the link for us military rifles then type in your serial number you can get the month and year of manufacture of the rifle action. it should be July 1918 for the serial number you provided. don't know much about price. hope this help a little
Nearest I can figure the Colt new service with that serial number was made around 1920