American telephone practice
A technical manual on telephone equipment and exchange wiring by engineer Kempster B. Miller, published in New York by McGraw in 1905 for installers, operators, and engineering students. The 462 plates are line-drawn circuit schematics, switchboard layouts, and cutaway views of coils, jacks, relays, and receivers, giving designers hard-edged black linework and repeating diagrammatic grids.
