My next frame, Top to bottom, Left to right. Maydwell & Hartzell. This has great graphics but they put the match strike right over the picture. It was supposed to resemble a transformer. Clever I guess but would rather see the missing parts behind it. National Refractories Co. Big Savage Furnace Fire Bricks, Pacific Wire Rope Co., 1930's Square D Co., Revere Electric Supply Co. Second Row: Post-Glover Electric Co. Resistors, General Electric Transformers, National Pole And Treating Co., Dunham Electric Supply Co. Bottom Row: Precision Transformer Corp., Carney Red Cedar Poles, Robotron Corp. Electronic Controls. Really neat graphics. A lot of these books also have info or pictures on the inside of the covers but can't capture that real good when they are in the frames. Click on view original to see a blow up of these pictures.