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Artist signature unreadable - Public Domain
Public Domain
Kristin Dos Santos - CC BY-SA 2.0
U.S. House of Representatives - Public Domain
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unknown - Public Domain
Adrian Piper - CC BY-SA 3.0
Civil War Photograph Collection (Library of Congress) - Public Domain
Schorle - CC BY-SA 3.0
Jpbowen - CC BY-SA 4.0
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Artist signature unreadable - Public Domain
Hildreth, Richard, 1807-1865
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Bruhn, Erik, 1928-1986
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Gruzman, Neville, 1925-
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Newcomb, Simon, 1835-1909
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Celsius, Anders, 1701-1744
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Williams, Richard, Sir, 1890-1980
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Cordier, P. L. A. (Pierre Louis Antoine), 1777-1861
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Thomas, Jameson, 1888-1939
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Sarpi, Paolo, 1552-1623
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Public Domain
Partridge, Frank C. (Frank Charles), 1861-1943
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Salomon, Siegfried
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Public Domain
Ostriche, Muriel, 1896-
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Public Domain
Dodge, Augustus C. (Augustus Caesar), 1812-1883
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Kristin Dos Santos - CC BY-SA 2.0
Morales, Esai
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U.S. House of Representatives - Public Domain
Stansbury, Melanie, 1979-
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Merritt, Charles
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Columban, Saint, 543-615
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unknown - Public Domain
Clinch, Duncan Lamont, 1787-1849
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Adrian Piper - CC BY-SA 3.0
Piper, Adrian, 1948-....
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Sansom, Gareth, 1939-
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Stoughton, Edwin H. (Edwin Henry), 1838-1868
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Cujas, Jacques, 1522-1590
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Holland, Jeffrey R., 1940-
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Ward, Bill, 1948-
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Davis, William Heath, 1822-1909
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Civil War Photograph Collection (Library of Congress) - Public Domain
Reno, Jesse Lee, 1823-1862
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Herbert, Hugh, 1887-1952
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Schorle - CC BY-SA 3.0
Inayat Khan, Pir Vilayat
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Hay, James, 1856-1931
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Jpbowen - CC BY-SA 4.0
Goodhart, Arthur L. (Arthur Lehman), 1891-1978