Handbook for the use of electricians in the operation and care of electrical machinery and apparatus of the U. S. seacoast defenses .. (1904)
United States. War Dept · Washington, Govt. print. off. · leaf 152
137. Keyboard for Night=Signal Set. X -GENERAL ELECTRIC COMPANYS NIGHT=SIQNAL SETSAND TRUCK=LIQHT CONTROLLERS. (A) NIGHT-SIGNAL SETS. Night-signal sets inchide four parts, namely: keyboard, cable, lanterns, and ^i^^ujhoard -The keyboard consists of a dial and operating handle mounted^,^n^vater-S-ht…
Electric machinery · Searchlights · Coast defenses
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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