1929 Standard Practical Wiring Edgar T. Martin First Ed Wiring Diagrams NEC For Sale

This is a 1929 first edition of “Standard Practical Wiring” by Edgar T. Martin, a substantial technical textbook published by the American Technical Society of Chicago, Illinois. The volume, bound in dark green cloth with gilt titling on the spine and front cover, served as a comprehensive manual for electricians, contractors, and engineering students during a transformative period in the electrification of American homes and industry. The front board is stamped with the title and the author’s name, while the spine includes the volume number, indicating its place within a larger instructional set. The interior reveals a dense, illustrated text with numerous diagrams, wiring schematics, and photographic plates documenting the state of electrical practice in the late 1920s, just before the widespread adoption of the National Electrical Code’s standardized color-coding and grounding requirements.A particularly notable feature is the tipped-in color plate showing the intricate jacket and insulation of a three-conductor armored cable, a chromolithographic illustration that would have been costly to produce and indicates the publisher’s commitment to pedagogical detail. The book’s front matter includes a tipped-in advertisement page for “Practical Books for Home Study and Classroom Use” published by the American Technical Society, a common promotional practice for subscription-based educational series of the era. This advertising leaflet, printed on different stock, lists companion volumes on carpentry, sheet metal work, and mechanical drawing, revealing the Society’s strategy of cross-selling technical manuals to a growing market of self-taught tradesmen and vocational school students. The text itself covers wiring methods, switch and receptacle installation, motor controls, and signal systems, reflecting the electrical infrastructure of the Jazz Age—a time when knob-and-tube wiring was still common but conduit and armored cable were becoming standard in new construction. The book measures approximately six by nine inches, a typical octavo format for reference works of the period, and shows moderate wear consistent with decades of shop or classroom use, including scuffing to the board edges and a slight lean to the binding. This volume is a substantive piece of electrical engineering ephemera, documenting the professional standards and instructional methods that shaped the built environment of early twentieth-century America.