Near Fine in Near Fine Dustjacket. Blue buckram-covered boards, with just the slightest bit of rubbing to extremities. Dustjacket scuffed and edgeworn with one or two closed tears. Massive work in a multi-volume series. " See our other offerings in this same series. NOTE: If all five books in this series remain unsold at time of your inquiry, all five volumes will be sold for 15% off total of individual prices. Chapters include: Setting and Scope; State of the Art in 1925; The Evolution of Elctromechanical and Manual Switching Technology 1925-1935; Introduction of Crossbar; The Better Understanding of Switching; Preparing for Full Automation; Direct Distance Dialing; Beginnings of Electronic Switching; Private Branch Exchanges, Key Telephone Systems and Special Systems.
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