Public domain
A New York City watch manufacturer, making clocks for airplanes, is seeking automatic screw machine facilities for the manufacture of twenty-thousand to thirty-thousand small clock gears. Material: high carbon steel, oil hardened. Dimentsions: O.D. .3685 inches; diameter at base of teeth. .3355 inch
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Credit lineA New York City watch manufacturer, making clocks for airplanes, is seeking automatic screw machine facilities for the manufacture of twenty-thousand to thirty-thousand small clock gears. Material: hi. 1941-01-01. Gruber, Edward. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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ARC-1989-A89-7033
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