Inside Out Library
The design and construction of a practical wireless telegraph station (1910)
Spurck, Robert Michael, Wheatlake, Burton Cyrenius Job · leaf 61
28 eighteen inches long and one and a half inches in diameter and fit-ted at the ends with throe eighths inch screw eyes.Telegraph stations · Telegraph, Wireless · Theses
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
More pictures from The design and construction of a practical wireless telegraph station
More like this
