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.

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Patent of the Day Utility Patent 303,483 on August 12, 1884 By Charles De Roy Bailey Slotted: Slotted spherical insulator supported by box & screw to hold wire

[Set My Event Preferences] Friday, August 12, 2022 Special Events Insulator & Bottle Shows in the next 180 days Jefferson State Insulator Club's Quatro Amigos and Dos Amigas Insulator Show & Sale   Bend, OR Today! Fri, August 12 (2 day show)   22nd Annual CBIC Shenandoah Valley Insulator Show   Martinsburg, WV CANCELED Tomorrow! Sat, August 13 in 1 day Dixie Jewels Insulator Club Summer Swap Meet   Toccoa, GA Sat, August 20 in 8 days Big Sky Show   Helena, MT Fri, August 26 (2 day show) in 14 days North-Western Insulator Club Annual Summer Sale and Swap Meet   Nisswa, MN Sat, August 27 in 15 days Antique Bottle Collectors of Colorado Show   Castle Rock, CO Sat, September 10 in 29 days Border States Antique Show & Sale   Lawrence, KS Sat, September 17 in 36 days Greater Chicago Insulator Club's annual fall swap meet   Ottawa, IL Sat, September 17 in 36 days Enchantment Insulator Club/New Mexico Historical Bottle Society 2022 Tailgater   Albuquerque, NM Sat, September 24 in 43 days 23rd annual Merzoian Brothers and Dave Brown Tailgater   Porterville, CA Sat, September 24 in 43 days Western Reserve Insulator Club's 'Oktoberfest' Insulator Show   Richfield, OH Sat, September 24 in 43 days YPCIC Fall Swap   Manchester, CT Sat, October 1 in 50 days Grand Canyon Summer Meet and Show   Mayer, AZ Sat, October 1 in 50 days North Western Insulator Club annual Fall Swap, Show and Sale   River Falls, WI Sat, October 1 in 50 days Garland Insulator and Collectibles Show   Garland, TX Sat, October 22 in 71 days 52nd Mid-Ohio Insulator Show   Springfield, OH Fri, November 4 (3 day show) in 84 days Yankee Pole Cat Insulator Club Annual "Beat the Snow" Antique Insulator, Bottle & Collectibles Show   Enfield, CT Sun, December 4 in 114 days National Insulator Association's 54th Annual Show and Convention   Logan, UT Fri, June 9 (3 day show) in 301 days Insulator show listings courtesy All Insulators - Crown Jewels Of The Wire Happy Birthday!   Today!! Fri, August 12 age 59 Today!! Fri, August 12 age 52 Tomorrow! Sat, August 13 age 65 Tomorrow! Sat, August 13 age 75 Tomorrow! Sat, August 13 Happy Anniversary!   Today!! Fri, August 12 23 years Tomorrow! Sat, August 13

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