No published sn data
Based on serial # 313213, It was manufactured in 1910. (312000-315999)
The Colt 1877 lightning with that serial number was manufactured in 1888,about 121 years ago.
about 1907
it was manufactured in 1928
@1968
Your gun was manufactured in 1904.
Per proofhouse.com, the Colt single action army with that serial number was made sometime after 1978.
It probably does not have one. Serial numbers were not required on shotguns manufactured or imported before 1969.
That rifle was manufactured in 1953.
With the serial number that you supplied,your Winchester model 1912,pump action shotgun was made in 1961.
Serial number 1108502 was manufactured in June of 1936.
manufactured by savage arms corp.utica.n.y.usa