American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 87
the key when the latter was not in use. This arrangement is also shown in Fig. 3 7,C beinj; ihe circuit closer, the knobic of which was puslied to the right in siMidiug. 6o AMERICAN TELEGRAPHY- Keys, almost as large as those introduced by Morse, are at the present day in usein the British Postal… … • BUNNELL LEGLESS KEY. The Style of key show^ in Fig. 38, is known as the • Bunnell key. It may besaid to have been the pioneer of the many light, solid lever keys now in service inthis country. Fig. 39 illustrates the Steiner key. Fig. 40 the Victor key. The keys shown in Figs. 38, 39 and 40, are…
Telegraph
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-461-232.webp)
