This vintage Hemingray 45 electric telephone pole insulator is a clear teal glass piece made in the United States. It is a unique addition to any collector's insulator collection and has a fascinating history as a component in the early days of telecommunications. The insulator has a distinct design with a smooth outer surface and grooves on the inside to hold the wires in place. It is a great conversation starter and a piece of Americana that highlights the ingenuity of the past.