First thought upon looking it over, it was an adjustable tongue for a goat cart. Then I googled J.H.Channon and found the Channon company that manufactured railroad equipment and contractors supplies, out of Chicago. It seems J.H.Channon was an officer in the company and under his name he manufactured theatrical equipment, rocking chain wheels, winches, I-beam trolleys and a host of other equipment. Until someone comes up with a catalog, or identifies it, I can say it was likely made in Chicago!