Check out our NEW ARRIVALS!
Antique (Lot of 6 ITEMS) HEMINGRAY Clear - Railroad Telegraph Line Insulator - 4”x4” (JT Booth 401).
Vtg Hemingray 45 Clear Glass Telegraph Insulator 4" Tall; 3½" diameter Made In USA
Six items are perfect; 1.89 x 6 = 9 pounds HEAVY
Shipping Weight: 12 pounds;
Glass insulators were first produced in the 1850's for use with telegraph lines. As technology developed insulators were needed for telephone lines, electric power lines, and other applications. In the mid 1960's a few people began collecting these antique glass insulators. Today there are over 3,000 insulator collectors.
“CD” NUMBERS
All glass pintype insulators are classified in what is called the “CD Numbering” system of identification. This system was created and used by N.R. “Woody” Woodward, an early pioneer, researcher and author in the field of collecting glass insulators. The CD (Consolidated Design) numbers basically identify insulators by their shape and profile, regardless of exact embossed markings, glass color, or base type.