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ETH Zürich - CC BY-SA 3.0
Georges Biard - CC BY-SA 3.0
US Embassy Canada - CC BY 2.0
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artist unknown - CC BY-SA 4.0
unknown - Public Domain
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Semisi Nau - Public Domain
Polygoon Hollands Nieuws - CC BY-SA 3.0
Billmckern - CC BY-SA 4.0
United States Senate Historical Office - Public Domain
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Pojar, Břetislav 1923-
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Hetzel, George, 1826-1899
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Whittaker, Jim, 1929-
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Crossfield, A. Scott (Albert Scott), 1921-2006
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Harris, Neil Patrick, 1973-...
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ETH Zürich - CC BY-SA 3.0
Lübke, Wilhelm, 1826-1893
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Georges Biard - CC BY-SA 3.0
Trier, Lars von 1956-
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US Embassy Canada - CC BY 2.0
Crow, Thomas E., 1948-....
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Photo by Louis Fréon, 106 Avenue du Roule, Neuilly (Paris) - Public Domain
Philipp, Isidor, 1863-1958
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artist unknown - CC BY-SA 4.0
Walmisley, Thomas Attwood, 1814-1856
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Orlai Petrics, Soma, 1822-1880
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King, Walker, 1751 or 1752-1827
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Aufray, Hugues
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Choulant, Ludwig, 1791-1861
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unknown - Public Domain
Sánchez, Florencio, 1875-1910
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Cushing, Peter, 1913-1994
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Borsos, József, 1821-1883
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Open Media Ltd - CC BY-SA 3.0
Smith, T. Dan (Thomas Dan), 1915-
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Semisi Nau - Public Domain
Moulton, J. E. (James Egan), 1841-1909
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James, Prince of Wales, 1688-1766
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Wayne, John, 1907-1979
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Lurie, Ranan R., 1932-
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Polygoon Hollands Nieuws - CC BY-SA 3.0
Landré, Guillaume
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Pegler, J. Westbrook (James Westbrook), 1894-1969
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Billmckern - CC BY-SA 4.0
Lyon, Matthew, 1749-1822
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Bryan, G. H. (George Hartley), 1864-1928
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Faulk, Andrew Jackson, 1814-1898
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Hamley, Edward Bruce, Sir, 1824-1893
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United States Senate Historical Office - Public Domain
Holmes, John, 1773-1843
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Spacey, Kevin