Public domain
Conservation. Glass gauges replacing steel. A glass ring gauge for the inspection of fuse parts. These gauges are replacing steel gauges at the Frankford Arsenal. Glass gauges are lighter and cheaper than steel, permit greater visibility in inspection, are not as much affected by room temperatures a
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Credit lineConservation. Glass gauges replacing steel. A glass ring gauge for the inspection of fuse parts. These gauges are replacing steel gauges at the Frankford Arsenal. Glass gauges are lighter and cheaper . 1943-01-01. Hollem, Howard R., United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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