With the serial number that you have supplied,your Winchester model 12 pump action shotgun was made in the year 1941.
With the serial number that you have provided,your Winchester model 1897 pump action shotgun was made in the year 1942.
Your serial number indicates that your model 1897 pump action shotgun was made in the year 1907.
with the serial number that you provided,your Winchester model 1897 pump action shotgun was produced in the year 1902.
With the serial number that you have provided,your Winchester model 1912 pump action shotgun was made in the year 1956.
With the serial number that you supplied,your Winchester model 1912 pump action shotgun was made in the year 1916.
with the serial number that you have supplied,your Winchester model 12 pump action shotgun was made in the year 1936.
your serial number indicates that your Winchester model 1897 pump action shotgun was made in the year 1940.
The problem is- there was no Model 80 pump rifle. However, there IS a Model 90- with a 9 that is often misread as an 8. That serial number was made in 1922.
With the serial number that you have provided,your Winchester model 1890 pump action .22cal rifle was made in the year 1913.
With the serial number that you have provided,your Winchester model 12 pump action shotgun was made in the year 1926.
With the serial number that you have provided,your Winchester model 12 pump action shotgun was made in the year 1959.