According to OldGuns.net, the year of manufacture for Winchester Model 1912 serial number 466271 is 1927. Not sure if this is your gun, or what the value is.
your Winchester model 12 shotgun was made in 1926.
Made in 1991.
Hopkins and Allen arms co. 12ga serial #5832006
Your serial number indicates that your Winchester model 12 pump action shotgun was made in the year 1937.
Your serial number indicates that your Winchester model 12 shotgun was made in the year 1946.
your winchester model 12 shotgun was produced by winchester in 1925.As to the value these fine winchester pump shotguns are selling for between 250-500 dollars depending on the amount of original finish remaining on the guns metal and wood.If your shotgun has a vent rib barrel you can add 40-50% to the above listed price quote.
VALUE $250 AGE GOOGLE A WINCHESTER COLLECTORS SITE
Proofhouse.com has Winchester sn tables.