Try egunparts.com, want ad, for sale ad, pawn shop, gun shop, on line auctinos, gun show, estate sale.
50-125 or so
50-150 USD
Nothing without you providing a detailed description of your shotgun,to include the model,serial number to age your shotgun and what type of barrel it has(single,double,over under etc.)also include if it is a plain barrel,solid matte rib,or vent rib barrel.
I have not been able to find where these shotguns originated, but the reason I am replying is due to the fact that my finch arms 12ga. single barrel is also stamped with 200743
I was offered $500.00 for mine.
50-1000 or more depending on specifics
suggest you contact: wellsfargohistory.com for shotgun history/value
HAVE IT CHECKED OVER BY A GUNSMITH FIRST!!!!!!!!!!!! It is an old shotgun.
Gunpartscorp.com has about the best selection of gun parts in the country. Start there.
50-100 usd
model273-510770
Made for Western Auto Stores. Proofhouse.com has a store brand chart.