A teal glass Hemingray No. 19 double petticoat insulator. 4 “ Tall

The Hemingray Glass Company was a prominent American manufacturer of glass insulators, founded in the mid-19th century. Their insulators were crucial components in the expansion of telegraph and telephone lines across the United States and beyond. The company produced a wide variety of insulator designs, many of which are now highly sought after by collectors. Their distinctive teal or aqua color is a hallmark of many early glass insulators. This particular insulator, identified as a Hemingray No. 19, features a double petticoat design, which provided additional insulation and support for electrical wires. These insulators were manufactured from the late 19th century through the mid-20th century, and their condition, color, and specific mold variations can significantly impact their value to collectors.

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• Listed Feb 4, 2026