If it's a model 400 the from what i understand it was made by Winchester. A 101 I've heard. I have one and I have seen one go for 900. If that's the one you have then they are fun guns to shot. If its different then you need to provide more specifics.
This was a production request from sears,which sold the shotguns under the name of ted williams.
Since we have no information on what needs fixing, the answer is take it to a gunsmith.
i have one and it is stamped made in japan
Try proofhouse.com. Look under the store brand info.
The Sears M300 (also sold under the label Ted Williams) was manufactured by Winchester. The M300 is almost identical to the Winchester model 1400 shotgun (with minor cosmetic differences).
I don't know. I have one also, and I am searching right for now for info. Sears did not make any firearms, but retailed firearms made for them under private brand names. Most of the Ted Williams branded guns were actually made by Winchester. If you can provide a model number, which is marked on the gun, we can be more specific. www.countrygunsmith.net
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This is called the magma chamber.
Obviously French, but not much else. The proofmarks under the barrel and type of action will help date the shotgun.
John Moses Browning. The Browning Superposed was the first practicle over, under shotgun
This is a double barrel, over/under shotgun.
Browning.com has a sn function under customer service.