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original uploader - CC BY-SA 2.5
Jeff Albert - CC BY-SA 2.0
Frank A. Munsey Co. - Public Domain
unknown - Public Domain
anonymous - Public Domain
Artemisboy - Public Domain
'''IVIC''' (Instituto Venezolano de Investigaciones Científicas) -
United States Air Force - Public Domain
Ed Newman - CC BY 2.0
Alexander Sutherland (book author) - Public Domain
Public Domain
Jean-Baptiste Perronneau - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
Houari Boumedienne - CC BY-SA 2.0
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original uploader - CC BY-SA 2.5
Green, Al, 1946-....
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Jeff Albert - CC BY-SA 2.0
Russo, Sonny, 1929-
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Thornton, Billy Bob
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Frank A. Munsey Co. - Public Domain
Eltinge, Julian, 1883-1941
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Glisson, Francis, 1597-1677
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unknown - Public Domain
Bravo, Nicolás, 1786-1854
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unknown - Public Domain
Sharpe, Edmund, 1809-1877
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Vanloo, Carle, 1705-1765
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anonymous - Public Domain
Giles, of Rome, Archbishop of Bourges, approximately 1243-1316
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Whitney, J.D. (Josiah Dwight), 1819-1896
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Cuyler, Kiki, 1898-1950
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unknown - Public Domain
Hough, William Jervis, 1795-1869
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Mathews, John Joseph, 1895-1979
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Artemisboy - Public Domain
Langenkamp, Heather, 1964-...
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'''IVIC''' (Instituto Venezolano de Investigaciones Científicas) -
Fernández Morán Villalobos, Humberto, 1924-1999
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Gilchrist, Murray, 1868-1917
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United States Air Force - Public Domain
Voll, John James, 1922-1987
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Ed Newman - CC BY 2.0
Cheatham, Doc
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unknown - Public Domain
Qin shi huang, Emperor of China, 259 B.C.-210 B.C.
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Alexander Sutherland (book author) - Public Domain
Perry, Charles, 1807-1891
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Public Domain
McLane Louis 1786-1857
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Fernow, C. L. (Carl Ludwig), 1763-1808
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Johnson, Rossiter, 1840-1931
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Hellman, Isaias W. (Isaias William), 1842-1920
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Repnin, Nikolaĭ Vasilʹevich, kni︠a︡zʹ, 1734-1801
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Jean-Baptiste Perronneau - Public Domain
Cazenove, Théophile, 1740-1811
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Hyde-White, Wilfrid
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Harlow, Jean, 1911-1937
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Mathew Brady Levin Corot Handy - Public Domain
Beck, James B. (James Burnie), 1822-1890
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Houari Boumedienne - CC BY-SA 2.0
Berman, Judith, 1958-