Principles of Electricity applied to Telephone and Telegraphy, a Training Course Text Prepared for Employees of the Long Lines Department American Telephone and Telegraph Copmpany (oversized, HC, 1953, $7, which is 1/3 the internet price)
"Although truly fundamental principles do not change with time, the rapid growth asnd development of the communications art over the years has necessitated the incorporation of numerous new or changed illustrative applications in each new edition... In addition the accelerated extension in recent years of radio and very high frequency techniques has made it desirable to include a great deal of new material in the fields of electronics and electromagnetic radiation."
Another step into the past. It can be found on the new non-fiction table. (L-eng)
