Altered Colors

Reference Articles

Fake and Altered Insulators - Artificially Induced Colors, Dwayne Anthony, Reprinted from Crown Jewels of the Wire, May, 2000, page 26 (external link). This article includes additional links to photos of altered colors

A Handbook for the Recognition and Identification of Fake, Altered, and Repaired Insulators, Mike Guthrie (external link). An online version of a handbook covering NIA Code of Ethics, repaired insulators, color alteration, mechanically altered insulators, fabricated insulators and facsimiles, alterations to porcelain insulators, and an appendix with an index of known or suspected altered colors of insulators.