The Winchester page puts the date at 1925 and the E stands for Black Diamond.
Your winchester model 12 shotgun was produced by winchester in 1947.
Your Winchester shotgun was manufactured in 1914.
Cannot be answered unless you include the model of WInchester shotgun in question,along with the serial number.
Your serial number indicates that your Winchester model 1897 shotgun was made in the year 1903.
your Winchester model 1897 shotgun was made in 1914 with the serial number that you provided.
There were no serial numbers stamped on the original Winchester Mdl. 37, single shot shotgun.
Your winchester model 12 shotgun was made by winchester in 1947.
Your serial number indicates that you have a winchester model 101 in 20gauge.This shotgun was made by winchester in 1966.
Your Winchester model 1912 pump action shotgun was made by Winchester in 1917,with the serial number provided.
In order to answer your question correctly,I would need to know the model of Winchester shotgun that you are asking about and the serial number of the shotgun in question.
your Winchester model 1897 shotgun was made in 1916.
your Winchester model 1897 shotgun was made in 1910.