no . riverside was mainly produced after 1914, using fluid steel barrels.
Crescent Fire Arms Co.was in business from 1888-1931.If yours has a damascus twist barrel/or barrels then it was made prior to 1903.These were meant for Black powder shotgun shells only.If they are fluid steel,or nickel steel barrels then it was made sometime from 1904-1931.Most early type black powder shotguns will have a exposed hammer/or hammers on them.
Stevens used the Riverside name from about 1920-1945. It was a brand name used by Stevens for Montgomery Wards and other retailers. They still made some exposed hammer guns at least until 1940.
I copied this rom another site- one of tens of thousands of shotguns made by Crescent. Commonly referred to as "hardware store guns". I have an old Essex side by side, manufactured around 1900 (it has steel barrels, not Damascus or twist steel), 28" barrels and exposed hammers. I removed the firing pins, and it makes a beautiful wall hanger. I don't think anybody knows exactly how many trademarks Crescent stamped on their sideplates, but there were a ton of them. Mine's worth 100-125 bucks. Yours should be around 100 bucks as well. Before shooting it, make ABSOLUTELY CERTAIN that the barrels are steel. Modern day loads in Damascus or twist steel are hand grenades waiting to happen.
NO ! In general, Damascus barrels were made for LOW pressure black powder loads. There are exceptions, but they are few. I do not recommend firing ANY Damascus barreled shotgun with ANY ammo until a gunsmith familiar with that type of barrel has inspected and borescoped it. Damascus barrels were made by wrapping hot strips of steel (or iron, or both) around a rod, reheating, and hammering until they welded together. Each weld (and there are thousands) is a potential point of failure IF the gun has been exposed to corrosion- like that that comes with firing black powder. I would retire it to a place of honor above the fireplace.
What you have is a model 215 Riverside Double Barreled shotgun. There are only two models, the other one (315) has internal hammers. I recently obtained a model 215 and needed a new barell. I found a site that lists Riverside parts, but cannot vouch for them as I have not ordered yet. However, this is the only place I've found; It's Numrich Gun Parts Corporation. The link below will take you to the parts list for the Riverside double barreled shotgun. http://www.e-gunparts.com/products.asp?chrMasterModel=2680zDOUBLE%20BARREL&MC=
Your shotgun was actually made by the crescent firearms company,and distributed by H&D Folsum Co.These shotguns are currently priced at between 140-240 dollars,whether they have a hammer or hammerless configuration,and whether they have a damascus,or steel barrels.These shotguns were made roughly between the years 1895-1925.
This is a Crescent Arms shotgun and if in very good condition with most of the case color on the receiver and blue on the barrels and tight with excellent barrels it is worth about $300. H.S.B.& Co. was an importer and distributor of shotguns for Crescent and that particular gun probably has a Rooster and is made in Chicago about 1900.
This was a trade name used by Anciens Etablissments Pieper in Belgium 1894 and later. Importing utility shotguns from Belgium pretty much ended when WWI started in 1914. Making any exposed hammer double barrel shotguns pretty much ended about the same time. This gun may have short (2 9/16") chambers and damascus barrels, and if so it will not be safe to use modern off-the-shelf ammunition. Value is primarily determined by how well it looks over a yuppie's fireplace, usually between $150 and $250.
Model 1889 made in 1906 Value varies greatly by condition and grade, if you don't know grade at least describe it well and if you can tell if barrels are steel or Damascus
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Riverside was a brand name used by Stevens for Montgomery Wards and other retailers. It was probably made soon after that patent date, but they still made some exposed hammer guns at least until 1940.