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Hector.antonio9911 - CC BY-SA 4.0
nn - Public Domain
Public Domain
Brady National Photographic Art Gallery (Washington, D.C.), photographer - Public Domain
Robert Stewart - CC BY-SA 2.0
Artist unidentified - Public Domain
MarielMarshall - CC BY-SA 3.0
original uploader - Public Domain
Sophia Elizabeth De Morgan - Public Domain
unknown - Public Domain
Rei Momo - Public Domain
US Government Printing Office. - Public Domain
Gilles Colosio / Châteauroux Métropole - Public Domain
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Hector.antonio9911 - CC BY-SA 4.0
Vega, Sergio, 1969-
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Robinson, Perry
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Fleischmann, Trude, 1895-1990
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nn - Public Domain
Rajchman, Ludwik, 1881-1965
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Bigler, John, 1805-1871
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Public Domain
Middleton, Charles, 1874-1949
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Brady National Photographic Art Gallery (Washington, D.C.), photographer - Public Domain
Judah, Henry Moses, 1821-1866
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Cameron, J. D. (James Donald), 1833-1918
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Public Domain
Waterman, Alan Tower, 1892-1967
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Robert Stewart - CC BY-SA 2.0
Dith Pran, 1942-2008
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Hanson, Pauline (Pauline Lee)
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Jones, Connie, 1934-
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Artist unidentified - Public Domain
Willson, Forceythe, 1837-1867
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MarielMarshall - CC BY-SA 3.0
Urquhart, Tony
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original uploader - Public Domain
Manton, Martin T. (Martin Thomas), 1880-1946
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Goode, G. Brown (George Brown), 1851-1896
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Sophia Elizabeth De Morgan - Public Domain
De Morgan, Augustus, 1806-1871
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unknown - Public Domain
Falloppio, Gabriele, 1523-1562
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Williams, Anthony, 1951-
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Rei Momo - Public Domain
Montanelli, Indro, 1909-2001
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James, Frank, 1844-1915
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Abel, Rudolf, 1903-1971
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Lester, Rufus E. (Rufus Ezekiel), 1837-1906
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Harrowby, Dudley Ryder, Earl of, 1798-1882
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unknown - Public Domain
Campbell, Colin, Lord, 1853-1895
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original uploader - Public Domain
Straus, Geneviève, 1849-1926
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Gompers, Samuel, 1850-1924
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US Government Printing Office. - Public Domain
Morris, Toby
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Gilles Colosio / Châteauroux Métropole - Public Domain
Borget, Auguste, 1808-1877
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Parlatore, Filippo, 1816-1877