Stunning. Ornate, Victorian antique, cast iron finial. Almost 9 inches long and 6 inches wide. Has a face in the center that looks like the God of Wind. Looks somewhat Oriental by the face and cinnabar red color. Will fit on a crew about 7/16 big. A magnet sticks to this but where the paint is rubbed away it looks like a brass color underneath. So, brass plated cast iron with cinnabar paint? No idea. Can't find another one to even compare.
Note: I am told by a very nice person that this is actually a bridge arm from an antique floor lamp.