Two aerial views of the U.S. Department of Agriculture complex located in Washington, DC. The second photograph was taken during the construction of the Administration Building and East and West Wings. The in-progress construction of the archways connecting the buildings is visible in the background.
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“Aerial View of U.S. Department of Agriculture Facilities,” 1936. Travis P. Hignett Collection of Fixed Nitrogen Research Laboratory Photographs, Box 3. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/zk51vh120.
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