146B Electricity and Magnetism – Wear. 157D Operation of Electrical Machinery – Tests – Light Shelf Wear; a few page corners have been turned down. 156C Electric Stations and Substations – Shelf Wear.
INTERNATIONAL TEXTBOOK COMPANY – 19 DIFFERENT
603 Theory of Industrial Electronic Tubes – Light Shelf Wear. 602 Farm Wiring for Light and Power – Light Shelf Wear. 592 History of Aviation – Airplane Details – Light Shelf Wear. 556C Interior and Exterior Lighting – Light Shelf Wear.
