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Automatic recording thermometer in cooperative creamery at Ruthven, Iowa. The latest scientific instruments are used here
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Automatic recording thermometer in cooperative creamery at Ruthven, Iowa. The latest scientific instruments are used here

United States. Resettlement Administration, Lee, Russell · 1936-01-01 · photo, print, drawing

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

Subjects
cooperativesruthvennitrate negativesunited statesiowa
Credit lineAutomatic recording thermometer in cooperative creamery at Ruthven, Iowa. The latest scientific instruments are used here. 1936-01-01. United States. Resettlement Administration, Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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