only thing i can tell ya about the company is that they have been out of business for years. i have a hammer-less double barrel that needs new fingers cock the hammers, took it to a gun smith and he told me that all Riverside Arms were HAND made. No parts where interchangeable. that's about all i can remember about it though, I can tell you the gunsmith had one just like it. he said they were rare. his name is sonny and you can reach him at west end shooting supplies in Athens tn. anyhow good luck it Riverside Arms was an "economy brand" of J. Stevens. There will be an identical gun with the Stevens name and probably also one marked Springfield Arms. Not rare, collected, or valuable. The Riverside double was indeed manufactured by J. Stevens Co. and it is the same gun as the J. Stevens Model 315. This was one of several "utility shotguns" made by Stevens from 1877-1988. From what I've found, the value on this shotgun is: NIB $1.000.00 Excellent=$500.00-$200.00. There is a year code stamped on every Stevens double barrel shotgun produced between March 1949 and December 1968. The serial number is prefixed with a letter. If your shotgun does not have a letter preceding the serial number it was made prior to 1949. If you're looking for parts on this item, I was able to find them @ e-gunparts.com (It was http://www.e-gunparts.com/model.asp?idDept=209 unless the URL has changed) Hope this helps!
Riverside was an 'economy' brand used by the Stevens division of Savage in the 20's and 30's.
Depends on what is marked on the gun.
Try Numrich arms @ www.e-gunparts.com
Should be marked on the barrel. It is impossible to tell caliber from the information you provided.
It will be marked on the barrel. The barrel is marked "Made in Portugal".
I can tell you that your shotgun was made by J. Stevens Arms sometime between 1914 and 1940, the barrel was cut off and the Wells Fargo markings were added by someone trying to make an inexpensive shotgun appear to be a rare collectable firearm. WF guns were not marked with the brass plates and so many "stagecoach guns" have been faked that there is no collector market for any that do not have solid provinence, ie., a bill of sale from the company identifying the make, model, and serial number.
Please list EXACTLY how the barrel is marked, and if possible send a digital picture. sales@countrygunsmith.net
Try googling it. I believe you will be surprised.
It's like asking "Car marked with 318?". More information needed. Caliber, maker, barrel length, box, accessories, condition, finish, etc..
Marked on the barrel.
Blue Book of Gun Values
50-100 USD or so