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 1,125,742 on January 19, 1915 By Edson O. Sessions Clamp Type: Clamp type

[Set My Event Preferences] Sunday, January 19, 2020 Special Events Insulator & Bottle Shows in the next 59 days  Crown Point, IN in 6 days Sat, January 25  Yuma, AZ in 13 days Sat, February 1  Palmetto, FL in 26 days Fri, February 14 (2 day show)  Milton, GA in 27 days Sat, February 15  New Oxford, PA in 48 days Sat, March 7  Baltimore, MD in 49 days Sun, March 8  Logan, UT in 145 days Fri, June 12 (3 day show)  Farmington, NM in 530 days Fri, July 2 (3 day show) Happy Birthday! age 54 Today!! Sun, January 19 age 55 Today!! Sun, January 19 age 50 Today!! Sun, January 19   Today!! Sun, January 19 Happy Anniversary! 52 years Tomorrow! Mon, January 20 search time 0.07 seconds

Updated Monday November 18, 2019	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