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Civilian defense. This overhead switch controls the output of a 110-volt direct current generator, operating at 10 kilowatts to supply power to provide power for the two searchlights on the roof of the huge Emergency Service truck. There are also several auxilliary lights runs out from the truck and
Public domain

Civilian defense. This overhead switch controls the output of a 110-volt direct current generator, operating at 10 kilowatts to supply power to provide power for the two searchlights on the roof of the huge Emergency Service truck. There are also several auxilliary lights runs out from the truck and

United States. Office For Emergency Management, Hollem, Howard R., Palmer, Alfred T. · 1941-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

Subjects
safety film negativesnew yorknew york (state)united states
Credit lineCivilian defense. This overhead switch controls the output of a 110-volt direct current generator, operating at 10 kilowatts to supply power to provide power for the two searchlights on the roof of th. 1941-01-01. United States. Office For Emergency Management, Hollem, Howard R., Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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