Vintage Hemingray teal blue green insulator #42 vintage 1920s 1930s 1940s

Vintage Hemingray teal blue green insulator #42 vintage 1920s 1930s 1940s 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 contact with the poles, helping to insulate the signal. According to Hemingray Info, the Hemingray 42 was produced between 1921 and 1960. A great addition to your insulator collection! Stamped Hemingray 42 and Made in USA Overall in very good condition, with a couple minor flaws which will be pictured.