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GTheory - CC BY-SA 3.0
Photographer-Friedman-Abeles, New York. - Public Domain
KesslerRonald - CC BY-SA 4.0
Charles Fenderich (1805-1887) - Public Domain
Wilson, James Grant, 1832-1914; Fiske, John, 1842-1901; Dick, Charles, 1858-; Homans, James Edward, 1865- - Public Domain
nach einem Gemälde von E. Hader, 1885 herausgegeben von Sophus Williams Verlag Berlin. - Public Domain
Emil Orlik - Public Domain
זהר אלקיים. - CC BY 2.5
George Iles - Public Domain
unknown, picture taken 1917 - Public Domain
T. F. Cheeseman - Public Domain
anonymous - Public Domain
Valueyou - CC BY-SA 3.0
Nightscream - CC BY 3.0
Fondo Antiguo de la Biblioteca de la Universidad de Sevilla - CC BY 2.0
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GTheory - CC BY-SA 3.0
Generalić, Ivan
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Nicolau i Parera, Antoni, 1858-1933
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Photographer-Friedman-Abeles, New York. - Public Domain
Prentiss, Paula, 1939-
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Flintoe, Johannes, 1787-1870
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KesslerRonald - CC BY-SA 4.0
Kessler, Greg
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Turner, Anne, 1576-1615
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Cao, Pi, 187-226
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Charles Fenderich (1805-1887) - Public Domain
Hernandez, Joseph M. (Joseph Marion), 1788-1857
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Wilson, James Grant, 1832-1914; Fiske, John, 1842-1901; Dick, Charles, 1858-; Homans, James Edward, 1865- - Public Domain
Loree, Leonor Fresnel, 1858-1940
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nach einem Gemälde von E. Hader, 1885 herausgegeben von Sophus Williams Verlag Berlin. - Public Domain
Benedix, Roderich, 1811-1873
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Emil Orlik - Public Domain
Walden, Herwarth, 1878-1941
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זהר אלקיים. - CC BY 2.5
Ḳlinshṭain, Rami, 1962-
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Preston, A. W. (Andrew W.), 1846-1924
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Ballard, J. G., 1930-2009
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Atkinson, Richard C.
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George Iles - Public Domain
Stevens, John, 1749-1838
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Bernegger, Matthias, 1582-1640
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Gouvion Saint-Cyr, Laurent, marquis de, 1764-1830
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unknown, picture taken 1917 - Public Domain
Boltwood, Bertram Borden, 1870-1927
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T. F. Cheeseman - Public Domain
Broun, T. (Thomas), 1838-1919
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anonymous - Public Domain
Darlan, François, 1881-1942
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Valueyou - CC BY-SA 3.0
Acconci, Vito, 1940-....
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Howser, Huell
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Utterson, Edward Vernon, 1775 or 1776-1856
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Nightscream - CC BY 3.0
Anderson, Melody
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Fondo Antiguo de la Biblioteca de la Universidad de Sevilla - CC BY 2.0
Morales, Ambrósio de, 1513-1591
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Mathews, Harry, 1930-....
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Hacking, Ian.
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Shiner, David, 1953-
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Lawrence, Rosina