July 1942. "Production of aircraft engines at Melrose Park Buick plant near Chicago. Hundreds of gears pass through the expert hands of Dorothy Miller and Sylvia Dreiser during their eight-hour working day in a large Midwest aircraft plant. Inspection of these vital cogs in America's war machine is a delicate task and one which requires infinite patience and precision." Medium format negative by Ann Rosener for the Office of War Information.
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