1912
Your Winchester model 1912 pump action shotgun was made by Winchester in 1917,with the serial number provided.
your Winchester model 12 shotgun was made in 1926.
Your serial number indicates that your Winchester model 1912 pump action 16 gauge shotgun was made in the year 1913.
your Winchester model 12 pump shotgun was made in 1936.
Made in 1961
No browning did not,but winchester made a ranger model pump action shotgun.
With the serial number that you have supplied,your Winchester model 1912 pump action shotgun was made in the year 1959.
With the serial number that you have supplied,your Winchester model 12 pump action shotgun was made in the year 1946.
Your Winchester model 1912 pump action shotgun was made in 1917 with the serial number that you provided.
With the serial number that you have provided,your Winchester model 12 pump action shotgun in 20 gauge was made in the year 1930.
Your serial number indicates that your Winchester model 12 pump action shotgun was made in the year 1916.
With the serial number that you provided,your winchester model 1912 shotgun was made in 1952.