Old engineer's Audel / Hawkins Electrical Guide #10 "Questions, Answers and Illustrations - Modern Applications of Electricity". It is copyright 1917 by Theo. Audel & Co., but is a 1924 - 1925 printing. This old handbook has over 370 pages with sections on electric elevators, electric cranes, X-rays and electric medical and electro-therapeutics, electro-plating and more! It is full of tons of illustrations, schematics and drawings.
This has lots of great illustrations of early electric industrial equipment, pumps, air compressors, elevators and more.
It is in very nice condition with gilt edges to the pages.