Double 12 gauge hammerless riverside arms with pat apr 20 1915 is there any value?

The Double 12 gauge hammerless Riverside Arms shotgun, particularly with the patent date of April 20, 1915, can have some collectible value, but it largely depends on its condition, rarity, and market demand. Generally, such shotguns can range from a couple of hundred to over a thousand dollars. To get a more accurate appraisal, consider consulting a firearms expert or checking recent sales of similar models in gun shops or online auctions.