That patent date identifies a Stevens single shot.
Depends on what is marked on the gun.
This a double barrel shotgun. This is my second favorite shotgun in the world. The reason why it is called 12 Ga double barrel is that the barrel in 12 inches long, and every two shots, it has to be reload.
About $75 to $100, retail. firstname.lastname@example.org
An older used utility double barrel shotgun is worth around $200 if it is fully functional, but not in like-new condition.
If it is a single-shot, $75-$150. Double barrel, $150-$300.
Riverside Arms is a brand name used by the J Stevens Arms Co. on many good quality shotguns. The value depends on model, gauge, and condition. There is little collector interest in single barrel shotguns. Information about J Stevens Arms apply to Riverside Arms Co.
Many early ones may not have a serial number. If they do, it will most likely be on the side of the receiver. There is a small chance it will be inside, after you remove the barrel.
50-100 USD. HSB was a distributor for private label firearms made by many makers.
i don't know this answer but i have a this exact shotgun that was patented on this exact date that was given to me from my grandpa