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Moritz Daniel Oppenheim - Public Domain
original uploader - CC BY-SA 2.5
Unibond - CC BY-SA 3.0
Wwwhatsup - CC BY-SA 3.0
unknown - Public Domain
da - Public Domain
US Government Printing Office - Public Domain
Public Domain
Victor Dmitriev - CC BY-SA 3.0
NASA - Public Domain
unknown -
unknown photographer - Public Domain
Pascha Johann Friedrich Weitsch - Public Domain
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Moritz Daniel Oppenheim - Public Domain
Rothschild, Salomon, 1774-1855
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original uploader - CC BY-SA 2.5
Pines, Alexander, 1945-....
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Unibond - CC BY-SA 3.0
Dundee, Angelo
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Walters, Vernon A.
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Kislingbury, Frederick Foster, 1847-1884
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Cole, David L. (David Lawrence), 1902-1978
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Wwwhatsup - CC BY-SA 3.0
Noam, Eli M.
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Jones, Jennifer, 1919-2009
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unknown - Public Domain
Rose, Hugh James, 1795-1838
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da - Public Domain
Bangert, Emilius, 1883-1962
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US Government Printing Office - Public Domain
Fithian, Floyd James, 1928-
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unknown - Public Domain
Erikson, Erik H. (Erik Homburger), 1902-1994
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Freytag, Gustav, 1816-1895
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Talleyrand-Périgord, Charles Maurice de, prince de Bénévent, 1754-1838
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Public Domain
Maher, George Washington, 1864-1926
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unknown - Public Domain
Kimball, Charles Frederick, 1831-1903
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Cori, C. F. (Carl Ferdinand), 1896-1984
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unknown - Public Domain
Urban, Heinrich 1837-1901
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Gower, Ronald Sutherland, Lord, 1845-1916
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Victor Dmitriev - CC BY-SA 3.0
Kusturica, Emir
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Sennett, George B. (George Burritt), 1840-1900
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Carstares, William, 1649-1715
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NASA - Public Domain
Green, James L. (James Lauer)
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unknown -
Meltzl, Hugo von, 1846-1908
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Windsor, Edward, Duke of, 1894-1972
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Pribram, Karl H., 1919-....
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Bryan, G. H. (George Hartley), 1864-1928
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unknown photographer - Public Domain
Patterson, Malcolm R. (Malcolm Rice), 1861-1935
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unknown - Public Domain
Cobham, George Ashworth, Jr., 1925-1864
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Pascha Johann Friedrich Weitsch - Public Domain
Eschenburg, Johann Joachim, 1743-1820