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Measuring relative humidity by radio. Washington, D.C. June 9. The hai...
A man sitting at a desk with a typewriter, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. Gener... More
Measuring relative humidity by radio. Washington, D.C. June 9. The hai...
Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description