Arkivism
Production. Airplane propellers. John Sonesen, propeller blade grinder at a Hartford, Connecticut plant, inspects a blade for a vertical balance during the operation of grinding it to correct contours in a template. This blade will be assembled in a hydromatic mechanism to help power one of our new
Public domain

Production. Airplane propellers. John Sonesen, propeller blade grinder at a Hartford, Connecticut plant, inspects a blade for a vertical balance during the operation of grinding it to correct contours in a template. This blade will be assembled in a hydromatic mechanism to help power one of our new

United States. Office Of War Information, Feininger, Andreas · 1942-01-01 · photo, print, drawing

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

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united statesconnecticutnitrate negativeshartford countyeast hartford
Credit lineProduction. Airplane propellers. John Sonesen, propeller blade grinder at a Hartford, Connecticut plant, inspects a blade for a vertical balance during the operation of grinding it to correct contours. 1942-01-01. United States. Office Of War Information, Feininger, Andreas. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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