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23artashes - CC BY-SA 3.0
Joseph Williamson, author. Long, Short and Harmon (Portland, ME), publisher. - Public Domain
unknown - Public Domain
Christopher Peterson - CC BY-SA 3.0
Paul Thompson - Public Domain
Florence and Tommy Vandamm - Public Domain
A Newsam del, Lehman & Duval Lithographers, - Public Domain
Public Domain
Trumbull and Forest - Public Domain
Smithsonian American Art Museum. - Public Domain
MEDEF - CC BY-SA 2.0
user at project - CC BY-SA 3.0
unknown - CC BY 4.0
w - Public Domain
Unattributed - Public Domain
Andrieux (lithographe) - Public Domain
Felipe Guamán Poma de Ayala - Public Domain
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23artashes - CC BY-SA 3.0
Libaridian, Gerard J.
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Joseph Williamson, author. Long, Short and Harmon (Portland, ME), publisher. - Public Domain
Crosby, William George, 1805-1881
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unknown - Public Domain
Tekinalp, Munis, 1883-1961
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Secker, Thomas, 1693-1768
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Barnes, Robert, 1817-1907
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Christopher Peterson - CC BY-SA 3.0
Pataki, George E., 1945-
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Paul Thompson - Public Domain
Walsh, Ed, 1881-1959
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Park, Guy Brasfield, 1872-1946
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Florence and Tommy Vandamm - Public Domain
Perkins, Osgood, 1892-1937
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Inglis, Charles, 1734-1816
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A Newsam del, Lehman & Duval Lithographers, - Public Domain
Schweinitz, Lewis David von 1780-1834
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Public Domain
Wurster, Catherine Bauer
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Bazaine, François-Achille, 1811-1888
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Markbreit, L. (Leopold), 1842-1909
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Trumbull and Forest - Public Domain
Wayne, Anthony, 1745-1796
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Franklin, Sidney, 1903-1976
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Smithsonian American Art Museum. - Public Domain
Hancock, Walker Kirtland, 1901-1998
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Stewart, Elaine, 1930-2011
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MEDEF - CC BY-SA 2.0
Diouf, Abdou
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Jacobus, de Voragine, approximately 1229-1298
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user at project - CC BY-SA 3.0
Eysenck, H.J. (Hans Jürgen), 1916-1997
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Krischanitz, Adolf, 1946-....
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unknown - CC BY 4.0
Spalding, Baird T. (Baird Thomas), 1857-1953
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Lhermitte, Léon-Augustin, 1844-1925
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w - Public Domain
Jemison, Mae, 1956-
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Unattributed - Public Domain
Erben, Henry, 1832-1909
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Maclagan, Douglas, 1812-1900
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Simkins, Modjeska Monteith, 1899-1992
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Andrieux (lithographe) - Public Domain
Lemoine-Montigny, M.
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Felipe Guamán Poma de Ayala - Public Domain
Guamán Poma de Ayala, Felipe, active 1613