Collector's Guide for Porcelain Insulators : (Unipart Pin-Types)

By Elton N. Gish

The Guide Book provides a way to catalog and identify Unipart (1-piece) pin-type porcelain insulators by using U-numbers. Each of the 1014 U-number styles are represented by a color photo. The history of each manufacturer (1845 to 2015) is given in great detail along with all the various markings used on porcelain insulators.

• Format: Spiral-bound
• Language: English
• ISBN: 0615734286
• ISBN13: 9780615734286
• Release Date: July 2015
• Publisher: Infinity Press
• Length: 275 Pages
• Age Range: 10 years and up