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Conservation. Glass gauges replacing steel. Inspecting a gear with a steel ring, since replaced by a glass gauge 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 and heat of operators' h
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Conservation. Glass gauges replacing steel. Inspecting a gear with a steel ring, since replaced by a glass gauge 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 and heat of operators' h

Hollem, Howard R., United States. Office Of War Information · 1943-01-01 · photo, print, drawing

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

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safety film negativesphiladelphiaphiladelphia countypennsylvaniaunited states
Credit lineConservation. Glass gauges replacing steel. Inspecting a gear with a steel ring, since replaced by a glass gauge at the Frankford Arsenal. Glass gauges are lighter and cheaper than steel, permit grea. 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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