Only markings on antique powder shotgun "Childs JR." Ideas??? Need more info!!?

my great grandmother has a gun that is in two pieces that she says my great grandpa had since before they were married. it is a double barrel black powder shot gun. the only words on any of the gun is "Childs JR." the only other thing that stands out is a brass deer on the base of one side of the gun. looking for info and cannot find anything. any other information anyone could tell me would be so appreciated!! thanks for any help!!