Where to find out about an old shotgun with Connecticut arms co on it?

To find information about an old shotgun marked with "Connecticut Arms Co," you can start by visiting online firearms forums and collector websites where enthusiasts share knowledge about historical firearms. The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) may also provide resources for tracing gun history. Additionally, books on American firearms or specific publications focused on gun manufacturing history might offer insights. Finally, consulting with a licensed firearms dealer or appraiser who specializes in antique guns can provide valuable information.