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New machine to speed up statistics of census of 1940. Washington, D.C....
Picryl description: Public domain image of a bureau, office furniture, desk, chair, free to use, no copyright restrictions.
[Herman Hollerith, head-and-shoulders portrait, facing left]
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
[Herman Hollerith, half-length portrait, facing front, wearing heavy c...
Public domain photograph - Portrait, United States, free to use, no copyright restrictions image - Picryl description