With the serial number that you have given,your Winchester model 1912 pump action shotgun was made in the year 1961.If it is in 12 gauge then the shotgun has a value of between 250-325 dollars for a specimen showing between 60%-80% of its original finish,if in 16 gauge then 275-375 dollars,if in 20 gauge then between 450-575 dollars.
As for the age of your Winchester model 1912 pump action shotgun.It was made in the year 1961.As to the value,that would be based on the amount of original finish remaining,and a good bore.Without that info supplied I would not be able to ascertain a distinct value for your Winchester shotgun.
Your winchester model 12 shotgun was produced by winchester in 1947.
Your winchester model 12 shotgun was made by winchester in 1947.
your Winchester model 1897 shotgun was made in 1916.
your Winchester model 1897 shotgun was made in 1910.
your Winchester model 1897 shotgun was made in 1914 with the serial number that you provided.
Your serial number indicates that your Winchester model 1897 shotgun was made in the year 1903.
Imposable to answer without you providing a serial number to your Winchester model 12 shotgun.
Your winchester model 12 shotgun was made by winchester in 1922.
your winchester model 12 pump shotgun was produced by winchester in 1942.
your Winchester model 12 shotgun was made by Winchester in 1959.
Your Winchester shotgun was manufactured in 1914.