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 1,009,630 on November 21, 1911
By Lawrence E. Barringer
: Insulator composition made of asbestos, flint, and calcium hydrate.

[Set My Event Preferences]

Thursday, November 21, 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 17 days
Insulator Show "GCIC Beat the Winter Blahs"
  Crown Point, IN Sat, January 25 in 65 days
Insulator Show Grand Canyon State Insulator Club's (GCSIC) 26th annual Yuma tailgater
  Yuma, AZ Sat, February 8 in 79 days
Insulator Show NW Missouri Insulator & Bottle Show
  Platte City, MO Sat, March 8 in 107 days
NIA show The National Insulator Association 56th Annual Convention, Show & Sale
  Marlborough, MA Fri, June 27 (3 day show) in 218 days
NIA show 57th NIA National Show & Convention
  Helena, MT Fri, July 10 (3 day show) in 596 days
More shows
Insulator show listings courtesy All Insulators - Crown Jewels Of The Wire
Happy Birthday!
age 81 Today!! Thu, November 21
age 68 Today!! Thu, November 21
age 56 Today!! Thu, November 21
age 70 Tomorrow! Fri, November 22
age 69 Tomorrow! Fri, November 22
age 82 Tomorrow! Fri, November 22
age 52 Tomorrow! Fri, November 22
age 64 Tomorrow! Fri, November 22
age 69 Tomorrow! Fri, November 22
age 71 Tomorrow! Fri, November 22
Happy Anniversary!
54 years Today!! Thu, November 21
What's New? Insulator Collectors On the Net! Go to the Porcelain Insulator Pages Navigation banner
Updated Monday
January 1, 2024
Are you  a member?
Why don't you join?

Donate to ICON
Porcelain Insulator
Pages

Featured:
book cover

Catalog of Lightning Rod Insulators with Associated Brackets

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 Updated 11/2024
*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 Updated 11/2024

Read it Online:
*Research Articles and StoriesUpdated 11/2024
*ICON Articles and Pictures
*Canadian Forum
*Books Online
*Show Reports
*Insulator News
*N.R. Woodward on the Web Updated 10/2019
*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 Updated 11/2024
*Insulators For Sale and Trade Updated 11/2024