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 …

Dec 14, 2025 · This is a posting place for "for sale" and "for trade" lists for glass insulators, porcelain insulators, or go-withs. The advantage this has over email lists, is that all the information is collected …

Sep 13, 2014 · View Original: Click to zoom, then click to magnify (1932 x 2576) 2807KB

Nov 5, 2025 · Jeanne and I were invited to see the 135 foot long "Big Boy" steam locomotive in Cheyenne, WY on our way home from the Mid-Ohio insulator show.

To see some of the great variety of shapes and colors of some foreign insulators, you can view these photographs of some foreign glass insulators and some foreign porcelain insulators.

Aug 31, 2003 · Porcelain Overview Similar to their glass counterparts, porcelain insulators date back to before the Civil War for telegraph wires. In North America glass was always the predominate material …

Aug 6, 2024 · The Purpose: The listings in this database are being collected for historical preservation purposes and to be used as a reference base for insulator collectors. As each insulator is removed …

Aug 31, 1997 · The need for the insulator arose out of the discovery of electricity, which in turn led to the invention of the light bulb, telegraph, telephone, and other electricity-oriented innovations. Also, as …

Dec 16, 1995 · Several books have been written to determine rarity, value, and desirability of porcelain insulators. One should consult these to get an accurate picture of desirability. The key reference is …

Canadian Porcelain This column has a few bits and pieces of insulator history that I found to be a bit out of the ordinary and would be of interest to collectors. David Kresz of Toronto Ontario, reports that a …