Information; elementary electricity, motor car electric systems, the gas engine from an ignition point of view, driving the car
A 1920 trade manual by Harvey Elmer Phillips, issued in Dayton, Ohio by Auto Electric Systems Publishing Company to teach mechanics and drivers automobile electrical work. The plates are line wiring diagrams on tinted stock: boxed circuits, coils, switch plates and spark-plug fans labelled in hand lettering, useful for schematic textures, technical typography and diagrammatic layout borrowed wholesale.

































































































































































































































































































































