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. Insulator clubs, local and national shows, and good reference books are available.
Patent of the Day
Utility Patent 837,409 on December 4, 1906
By Charles E. Blue
Press: Insulator press

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Wednesday, December 4, 2024
Special Events

Upcoming Insulator & Bottle Shows Shows
Insulator Show Yankee Pole Cat Insulator Club Annual "Beat the Snow" Insulator, Bottle & Collectibles Show
  Enfield, CT Sun, December 8 in 4 days
Insulator Show Central Florida Insulator Collectors (CFIC) and Antique Telephone Collectors Assn. (ATCA)
  Casselberry, FL Sat, January 18 in 45 days
Insulator Show "GCIC Beat the Winter Blahs"
  Crown Point, IN Sat, January 25 in 52 days
Insulator Show Grand Canyon State Insulator Club's (GCSIC) 26th annual Yuma tailgater
  Yuma, AZ Sat, February 8 in 66 days
Insulator Show NW Missouri Insulator & Bottle Show
  Platte City, MO Sat, March 8 in 94 days
NIA show The National Insulator Association 56th Annual Convention, Show & Sale
  Marlborough, MA Fri, June 27 (3 day show) in 205 days
NIA show 57th NIA National Show & Convention
  Helena, MT Fri, July 10 (3 day show) in 583 days
More shows
Insulator show listings courtesy All Insulators - Crown Jewels Of The Wire
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Catalog of Lightning Rod Insulators with Associated Brackets

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