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Friedrich Müller - Public Domain
Richard Herndon. New England Magazine - Public Domain
unknown - Public Domain
University of Bath - Public Domain
Dotman Pretorius - CC BY-SA 3.0
Markfan - CC BY-SA 3.0
Not stated - Public Domain
Georges Biard - CC BY-SA 3.0
Hans van Dijk / Anefo - CC BY-SA 3.0
Nv8200p - CC BY-SA 3.0
M. D. John A. Wyeth - Public Domain
George A. Grant - Public Domain
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Granger, Stewart, 1913-1993
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Friedrich Müller - Public Domain
Knote, Heinrich, 1870-1953
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Richard Herndon. New England Magazine - Public Domain
Rollins, Frank W. (Frank West), 1860-1915
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Dalton, Roque, 1935-1975
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Moi, Daniel Arap, 1924-....
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unknown - Public Domain
Laidlie, Archibald, 1727-1779
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Barrett, John, 1866-1938
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University of Bath - Public Domain
Pitman, James, Sir, 1901-
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Kodama, Yoshio, 1911-1984
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Constable, John, 1776-1837
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Roby, Martha, 1976-
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Dotman Pretorius - CC BY-SA 3.0
Coetzee, Christo, 1929-2000
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Markfan - CC BY-SA 3.0
Adamo, Salvatore, 1943-....
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Not stated - Public Domain
Holder, Charles Frederick, 1851-1915
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Giacometti, Giovanni, 1868-1933
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Reicha, Anton, 1770-1836
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Whistler, Anna Mathilda McNeill, 1804-1881
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Benham, Harry, 1886-1969
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Georges Biard - CC BY-SA 3.0
Moretti, Nanni
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Hans van Dijk / Anefo - CC BY-SA 3.0
Van de Wetering, Janwillem, 1931-2008
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Wiggins, Joseph, 1832-1905
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O'Callaghan, E. B. (Edmund Bailey), 1797-1880
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Nv8200p - CC BY-SA 3.0
Urrea, Luis Alberto
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M. D. John A. Wyeth - Public Domain
Wyeth, Nathaniel J. (Nathaniel Jarvis), 1802-1856
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Zhuge, Liang, 181-234
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Cowper, William, 1731-1800
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George A. Grant - Public Domain
Albright, Horace M. (Horace Marden), 1890-1987
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Villemessant, H. de (Hippolyte), 1812-1879
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unknown - Public Domain
Couturier, Charles, 1817-1890
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Mantegna, Joe