All my reference,s indicate that the Winchester model 1902 were not serial numbered.I can say that 666,742 were made from 1902-1931.Is it possible that you have a Model 1890 pump action .22cal rifle which may have a 1902 patent on it?The Winchester model 1902 was a single shot .22cal rifle.Winchester also made the model 1906 pump action .22cal rifle.If you have a model 1890 then your serial number indicates that it was made in the year 1903.If you have a model 1906,then it was made in the year 1910.
Your winchester model 1897 pump shotgun was made by winchester in 1921.
With the serial number that you supplied,your Winchester model 1912 pump action shotgun was produced by Winchester in the year 1923.
With the serial number that you provided,your Winchester model 12 pump action shotgun was produced in the year 1955.
with the serial number that you provided,your Winchester model 1897 pump action shotgun was made in the year 1906.
Your winchester model 12 pump action shotgun was made in the year 1950.
Your winchester model 1897 pump action shotgun was made by winchester in 1942.
Your Winchester model 1890 pump 22cal. rifle was made by Winchester in 1917.
Your winchester model 12 pump action shotgun was made by winchester in 1928.
No sn provided = no answer
your Winchester model 62a was made in 1957.
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 provided,your Winchester model 1912 pump action shotgun was produced in the year 1949.