Adco has no connection to your shotgun. They import semi-automatic shotguns made in Turkey. Diamond Arms Co was a trade name used by Shapleigh Hardware of St Louis, MO, on shotguns imported from Belgium c. 1880-WWI or made by Stevens and Iver Johnson from about 1900-1940. A single shot with serial numbers is most likely an Iver Johnson Champion.
Your local gunsmith may be able to clarify whether or not Winchester actually manufactured that shotgun for Sears.
100-10000 USD
The diamond 12 says it is a 12 gauge and the crowned ELG that it was manufactured in Belgium after 1893.
Manufactured by Davenport. sales@countrygunsmith.net
the 300f revelation modle 12 gauge pump shotgun was manufactured between the mid 80s and early 90s hopefually this is helpfull
Whats it worth?
Winchester. sales@countrygunsmith.net
Your shotgun was manufactured in 1947.
Actually the shotgun uses 16 gauge shells i have the same shotgun
1956 This shotgun WA manufactured in 1956
1979
1969