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.

Try the new Insulators Web Site search!

Patent of the Day Utility Patent 1,088,278 on February 24, 1914 By Minot K. Holmes Protective Shield: Protective metal rain guard for bottom of skirt

[Set My Event Preferences] Monday, February 24, 2020 Special Events Insulator & Bottle Shows in the next 59 days  New Oxford, PA in 12 days Sat, March 7  Baltimore, MD in 13 days Sun, March 8  Chico, CA in 18 days Fri, March 13 (2 day show)  Platte City, MO in 26 days Sat, March 21  Seattle, WA in 33 days Sat, March 28  West Leechburg, PA in 40 days Sat, April 4  Wheaton, IL in 40 days Sat, April 4  Enfield, CT in 41 days Sun, April 5  Antioch, CA in 46 days Fri, April 10 (2 day show)  Coon Rapids, MN in 47 days Sat, April 11  Perth, ON in 54 days Sat, April 18  Logan, UT in 109 days Fri, June 12 (3 day show)  Farmington, NM in 494 days Fri, July 2 (3 day show) Happy Birthday! age 58 Today!! Mon, February 24 age 64 Today!! Mon, February 24 age 54 Today!! Mon, February 24 age 65 Today!! Mon, February 24   Today!! Mon, February 24 age 69 Today!! Mon, February 24 age 59 Tomorrow! Tue, February 25 age 35 Tomorrow! Tue, February 25 age 63 Tomorrow! Tue, February 25 age 58 Tomorrow! Tue, February 25   Tomorrow! Tue, February 25 Happy Anniversary! 47 years Today!! Mon, February 24 13 years Today!! Mon, February 24 25 years Tomorrow! Tue, February 25 25 years Tomorrow! Tue, February 25 search time 0.07 seconds

Updated Wednesday January 22, 2020	Are you  a member? Why don't you join?	Porcelain Insulator Pages
Featured: Collecting and Identifying Crown Embossed Brookfield Beehive Insulators

General Information: Insulator Profiles Frequently Asked Questions Glossary of Insulator Terms Style Number Charts Anatomy of an Insulator Ted's Top Ten Tips Search the Insulator Pages Most Popular Insulators Insulator Wiki Download Area Links to Related Sites Photo Albums: North American Insulators Foreign Insulators Porcelain Insulators PicturePoster Gallery Shorpy Photographs Early Telegraph Insulators Insulator "Go-Withs" Insulators in Service Crown Jewels of the Wire Power Line Explorer The Greatest Insulator Find Clubs and Shows: National Insulator Association Local Clubs Show Calendar

Read it Online: Research Articles and Stories ICON Articles and Pictures Canadian Forum Books Online Show Reports Insulator News N.R. Woodward on the Web Taking Care of Your Insulators Classic Articles from RRTP Insulators and Computers Reference Material: Reference Books Magazines Publications Reference Library "The Insulator Gazette" Patent Reference Library Insulator Geography Where were they used? Insulator Catalogs Design Specifications Insulator Research Service Out of Print Resources The People Connection: ICON Mailing List Collectors' Pages Collectors Web Sites Online Contacts PicturePoster Insulators For Sale Insulators For Sale and Trade