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 147
guns—a thick earth parapet reaching to the level of the lowerside of the barrel. The l^irgest search light constructed has a mirror 6+ feet indiameter and an illuminating power of 3 X 10 candles. (H) TRANSPORTABLE SEARCH-LIGHT EQUJPMENT. Four sets (figs. 135-6) were ordered in the first…
Electric machinery · Searchlights · Coast defenses
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
