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shakko - CC BY-SA 3.0
unknown - Public Domain
Public Domain
Dan Harasymchuk - CC BY-SA 4.0
Malice1991 - CC BY-SA 4.0
Smithsonian Institution -
F.N. Broers / Anefo -
Henry Inman (1801-1846), siehe [http://www.artcyclopedia.com/artists/inman_henry.html] - Public Domain
Archibald Geikie - Public Domain
Hans Peters / Anefo - CC BY-SA 3.0
Tzolag Hovsepian - CC BY-SA 4.0
George Du Maurier - Public Domain
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Selneccer, Nicolaus, 1530-1592
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shakko - CC BY-SA 3.0
Sophocles
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Gomperz, Theodor, 1832-1912
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unknown - Public Domain
Marshall, Thomas Francis, 1801-1864
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Heisenberg, Werner, 1901-1976
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unknown - Public Domain
Keyser, Charles E. (Charles Edward), 1847-1929
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Taylor, John, 1703-1772
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Public Domain
Nifo, Agostino, approximately 1473-1545?
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Dan Harasymchuk - CC BY-SA 4.0
Strube, Cordelia, 1960-
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Malice1991 - CC BY-SA 4.0
Kinsey, Donald, 1953-
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Knopp, Konrad, 1882-1957
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Smithsonian Institution -
Blakeslee, Albert Francis, 1874-1954
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F.N. Broers / Anefo -
Segal, George, 1924-2000
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Ouvrard, G.-J. (Gabriel-Julien), 1770-1846
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unknown - Public Domain
Burgon, John William, 1813-1888
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Henry Inman (1801-1846), siehe [http://www.artcyclopedia.com/artists/inman_henry.html] - Public Domain
Middleton, Henry, 1770-1846
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Archibald Geikie - Public Domain
Scrope, George Poulett, 1797-1876
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Szirtes, George, 1948-....
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Green, Marika
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Hans Peters / Anefo - CC BY-SA 3.0
Constant, 1920-2005
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Stuart, Robert, 1785-1848
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Sicard, M. l'abbé (Roch Ambroise Cucurron), 1742-1822
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Stevens, Lillian M. N. Ames, 1844-1914
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Moloney, Parker
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Beymer, Richard, 1939-....
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Tzolag Hovsepian - CC BY-SA 4.0
Surmelian, Leon Z., 1905-1995
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Poincare, Henriette
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George Du Maurier - Public Domain
Millet, Francis Davis, 1846-1912
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unknown - Public Domain
Blaine, John J. (John James), 1873-1934
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Public Domain
Barney, Charles Neal, 1876-1949