yes it is a single barrell
1837
Central Arms Company was a trade name used by the W.H. Davenport Firearms Company on shotguns made for the Shapleigh Hardware Company of St. Louis. MO.
Hunter Arms
"What is the value of a Diamond Arms 12 Guage single shot dated 1893 made in St Louis Mo?"
Central Arms was a trade name used by Shapleigh Hardware on guns made by several manufacturers, but the 812 would be a single shot by J Stevens Arms Co, 1920-1948.
$25 to $75.
50-125 USD
$25.00 to $75.00
If it was made by Russell Arms Co.Then it is not a Winchester shotgun.
I dont know the exact value, but I just purchased a nice one off gunbroker.com for $47.55 + shipping So they're probably not worth much.
Less than $100.
20-100 usd