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Bones of earliest mammals being studied at Smithsonian Institution. Wa...
A black and white photo of a man in a library, Library of Congress Harris and Ewing collection Gift; Harris & Ewing, Inc. 1955. General information about the Harris & Ewing Collection is available at http://hd... More
Bones of earliest mammals being studied at Smithsonian Institution. Wa...
Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description