Public domain
Oil burners to machine gun parts. Using a micrometer to check this small part for an army machine gun, this worker must achieve tolerance not greater than 1/10,000 of an inch. This upper New York state factory, which formerly produced oil burners, is under contract for 75,000 small precision parts f
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Credit lineOil burners to machine gun parts. Using a micrometer to check this small part for an army machine gun, this worker must achieve tolerance not greater than 1/10,000 of an inch. This upper New York stat. 1942-01-01. Gruber, Edward, United States. Office For Emergency Management. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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