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Washington Oxi Day Foundation https://www.flickr.com/photos/oxidayfoundation/ - CC BY-SA 2.0
Ernest Rude - CC BY-SA 3.0
unknown - Public Domain
Bain News Service; original uploader was Richard Arthur Norton (1958- ) - Public Domain
Anónimo italiano - Public Domain
US Government Printing Office - Public Domain
original uploader - Public Domain
gdcgraphics -
reprint by L.T.J. Landouzy, Paris, 1906 - CC0 1.0
Public Domain
unknown photographer - Public Domain
George Grantham Bain Collection (Library of Congress) - Public Domain
Cham (Amédée de Noé) - Public Domain
unknown - CC0 1.0
Unknown - Public Domain
Image from Wikimedia Commons
Mengelberg, Misha
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Washington Oxi Day Foundation https://www.flickr.com/photos/oxidayfoundation/ - CC BY-SA 2.0
Gershman, Carl
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Harrowby, Dudley Ryder, Earl of, 1798-1882
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Ernest Rude - CC BY-SA 3.0
Eggen, Arne, 1881-1955
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Sheffield, Bill
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Laurent, Robert, 1890-1970
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unknown - Public Domain
Benelli, Sem, 1877-1949
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Bain News Service; original uploader was Richard Arthur Norton (1958- ) - Public Domain
Gustafson, Axel Carl Johan, active 1864-1887
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Ketchum, Black Jack, 1863-1901
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Juana, de la Cruz, Sor, 1481-1534
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Anónimo italiano - Public Domain
Bravo de Saravia Sotomayor, Melchor 1512-1577
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unknown - Public Domain
Waddell, W. B. (William Bradford), 1807-1872
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Ballanche, Pierre-Simon, 1776-1847
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US Government Printing Office - Public Domain
Hochbrueckner, George J. (George Joseph), 1938-
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Kingsley, Mary Henrietta, 1862-1900
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Vestris, Gaëtan, 1729-1808
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original uploader - Public Domain
Hart, Samuel, 1845-1917
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gdcgraphics -
Attenborough, Richard
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reprint by L.T.J. Landouzy, Paris, 1906 - CC0 1.0
Brouardel, P. (Paul), 1837-1906
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Sérusier, Paul, 1864-1927
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Public Domain
Bristow, George Frederick, 1825-1898
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unknown photographer - Public Domain
Unnerstad, Edith
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Angelus, Silesius, 1624-1677
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Omohundro, John Burwell, 1846-1880
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George Grantham Bain Collection (Library of Congress) - Public Domain
Swope, Gerard, 1872-1957
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Jeaurat, Edme-Sébastien, 1725-1803
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Venegas, Francisco Xavier, 1760-1838
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Cham (Amédée de Noé) - Public Domain
Caussidière, 1808-1861
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unknown - CC0 1.0
Eekman, Nicolas, 1889-1973
Image from Wikimedia Commons
Unknown - Public Domain
Drake, J. Madison (James Madison), 1837-1913