Antique 1920’s glass insulator Hemingway number 42

You may have noticed glass insulators such as this one atop railroad poles. During the era when telegraphs were a primary method of communication, these glass insulators kept the wires from coming into direct contact with the poles, helping to insulate the signal. According to Hemingray Info, the Hemingray-42 was produced between 1921 and 1960. A great add to your insulator collection! Stamped Hemingray 42 and MADE IN USA Great condition! Minor wear on the inside (see images)