glass insulatorshigh voltage insulator washingpower line insulatorsGlass insulators had been initially developed in the 1850's for use with telegraph lines. It was a preferred sort of glass, but their insulators didn't sell well. You can also get them at flea markets, auctions, estate sales, garage sales, antique shops, and at insulator shows (yes, they have sanctioned shows about insulators!). But today, if I walk about Yreka, there is hardly any glass at all, normally for telecommunications they use cables, which do not have to have insulators.
This system was instituted by N.R. Woody” Woodward, an early pioneer, researcher and author in the field of collecting glass insulators. Amber and fancy blue colors had been only created that color on objective by Hemingray, so they could be utilized to mark distinct lines (fire and police signals, and so on), so they have been never widespread.
Assorted glass insulators - colors involve clear, green and blue. Often an individual mold can be identified by studying and comparing insulators that were developed from it more than a considerable stretch of time. Otherwise, they did not try to make insulators in colors since it did not matter.