A History and Guide to North American Pintype Insulators By John & Carol McDougald

The NIA expresses its gratitude to authors John and Carol McDougald for developing this fantastic hobby resource.  The availability of this great reference guide to the collector community in digital format is made possible by the author’s generous assignment of their copyright interests to the NIA.  The two volume set is currently available as two large Adobe Reader format (.PDF) files which can be downloaded or viewed on-line.  Note that these are large files and could take an extended period of time to download even if you have a fast connection.   We also supply a version broken out by chapters which should help those with slower connections (see below).  This reference book replaced the "Most About Glass Insulators" by the Millhollands as the premier insulator reference in the hobby.  Please also check out "Birthing of the Book" which details the history behind this great publication.

Note:  “This document is made available for personal use only. It is copyrighted and the contents thereof must not be reprinted or imparted to a third party nor be used for any unauthorized purpose without obtaining advanced written permission from the National Insulator Association.”

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Volume 1 (History)	Birthing of the Book!   By, John & Carol McDougald	Volume 2 (Insulators)
Read by Chapters Introduction Table of Contents The Beginnings Brookfield - A long stretch Baltimore Glass Mfg. Co. New England Manufacturers New England Insulators New England Supply Co. Gray and Hemingray California Contributions Robert Good Jr. (Valverde) Insulators of the Mid-West Pennsylvania Manufacturers J. William Gayner Elmer N.J. Glassmaking Locke Insulator Mfg. Co. Corning Glass Works Millville New Jersey The Electrical Supply Co. Telephone Companies North & South of the border Topical Index Bibliography Insulator Colors		Read by Chapters Introduction Table of Contents How to use the Guide Consolidated designs 100-211 Consolidated designs 211-799 Etc Further Research Necessary Foreign Glass Insulators Glass Insulator Commemoratives Cross Reference

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