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Conservation. Glass gauges replacing steel. Markings are carried on a label pasted on the handle of a glass plug gauge, which replace steel gauges at the Frankford Arsenal. Markings on other gauges are produced by acid etching. Glass gauges are lighter and cheaper than steel, permit greater visibili
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Conservation. Glass gauges replacing steel. Markings are carried on a label pasted on the handle of a glass plug gauge, which replace steel gauges at the Frankford Arsenal. Markings on other gauges are produced by acid etching. Glass gauges are lighter and cheaper than steel, permit greater visibili

United States. Office Of War Information, Hollem, Howard R. · 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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Credit lineConservation. Glass gauges replacing steel. Markings are carried on a label pasted on the handle of a glass plug gauge, which replace steel gauges at the Frankford Arsenal. Markings on other gauges ar. 1943-01-01. United States. Office Of War Information, Hollem, Howard R.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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