Seventy-two pages loaded with original color photos of insulators and much reference material and photos related to the hobby. Features many threadless 701.1, 737.5, 718 740.3, 737, 738, 727, 735, 735. 737.6, 718, 740.1, 740s, 701.6, 726s, 742s, 158.1, 158.2, 158, 136.7/158, 136,4 with loads of amber,120 cobalt, 120 yellow olive green, many Hemingray and HGCOs in a variety of rare colors, lightniing road material, Canadian 102s, many great colored threaded pieces, wood trolleys from San Francisco, some nice power pieces, and some nice porcelains featured. Shipped to you door: $30