The government model with that serial number was made by Colt in 1944.
A Colt challenger with that serial number was made in 1952.
The records I have show a Colt Cobra with that serial number made in 1974.
The Colt Frontier Scout with that serial number was made in 1965.
Proofhouse.com has Colt serial number tables you can look at.
The Colt commander with that serial number was made in 1955.
The Colt with that serial number was made in 1976.
A Colt 1911 commercial .45 with that serial number was made about 1971
If your Colt Stagecoach was made from 1965 - 1968 it will not have a serial number.
A Colt 1903 hammerless .32 with that serial number was made in 1919.
The Colt 1911 government model with that serial number was made in 1919,
The Colt model 1911 commercial with that serial number was made in 1953