Riverside Arms Company 12 gauge single shot 30 barrel marked 583CJ made 1913 where can you info on this gun?

To find information on the Riverside Arms Company 12 gauge single shot shotgun made in 1913, you can start by checking online firearm databases, auction sites, and collector forums that specialize in vintage firearms. Websites like GunBroker, ArmsList, or the Blue Book of Gun Values may also provide insights on its value and specifications. Additionally, you might consider reaching out to firearms historians or visiting local gun shops that specialize in antique firearms for expert advice.