Contact Colt Firearms customer service.
If it is a Colt lightming rifle it was made about 1900.
The Colt lighting .22 rifle with that serial number was made in 1899.
Colt did not make the rifle. Sauer made it for them.
The first 45 long colt lever rifle was made in 1985.
a gunsmith needs to check both the ammo and rifle.
Colt was not in business in 1800. Samuel Colt was not born until 1814.
Around 1888.
The Western Field model 880 was made by Colt. It was the Colt Colteer semi-automatic .22 LR rifle.
Proofhouse.com has Colt sn data.
If your Colt Stagecoach was made from 1965 - 1968 it will not have a serial number.
1899 for a Colt lightning .22 mag rifle.
A Colt with that serial number was made in in 1956.