Insulator Collecting Websites:

  • cjow.com

    Crown Jewels of the Wire

    Crown Jewels of the Wire is dedicated to the collectors of historic glass and porcelain insulators used by telegraph, telephone and electric power utilities.

  • insulatorindex.com

    Old Insulators Index Home

    Discover Collectible Insulators! Learn how to acquire, research, identify, display, and conserve these colorful, historic, collectibles.