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PD-old - CC BY-SA 4.0
unknown - Public Domain
Mathew Brady - Public Domain
Original uploader - Public Domain
William Wells Brown. - Public Domain
Public Domain
AmChestertonSoc - CC BY-SA 3.0
Gottfried August Gründer - Public Domain
Justus Sustermans - Public Domain
Elliott & Fry - Public Domain
Jaqen - CC BY-SA 3.0
Ernst Hanfstaengl - Public Domain
World Economic Forum - CC BY-SA 2.0
Photographer-Romaine - Public Domain
George Frederic Watts - Public Domain
Paramount - Public Domain
Jnlin - CC BY-SA 3.0
Wilson, James Grant, 1832-1914; Fiske, John, 1842-1901; Dick, Charles, 1858-; Homans, James Edward, 1865- - Public Domain
original uploader - Public Domain
The Bureau of Industrial Service for CBS-TV. The Bureau was a division of ad agency Young & Rubicam and was widely used by networks, studios and program sponsors for distributing publicity materials. - Public Domain
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PD-old - CC BY-SA 4.0
Winter, J. M.
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unknown - Public Domain
Merritt, Edwin A. (Edwin Albert), 1860-1914
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Mathew Brady - Public Domain
Beebe, George Monroe, 1836-1927
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Duchâtel, Tanneguy, comte, 1803-1867
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Original uploader - Public Domain
Beecher, Edward, 1803-1895
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William Wells Brown. - Public Domain
Brown, William Wells, 1814?-1884
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Public Domain
Ward, Henry A. (Henry Augustus), 1834-1906
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Daniels, William H., 1901-1970
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AmChestertonSoc - CC BY-SA 3.0
Ahlquist, Dale.
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Gottfried August Gründer - Public Domain
Walch, Johann Georg, 1693-1775
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Browning, Barbara, 1961-
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Changarnier, Nicolas-Anne-Théodule 1793-1877
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Justus Sustermans - Public Domain
Maria Maddalena, d'Austria, granduchessa, 1587-1631
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Elliott & Fry - Public Domain
Redgrave, Richard, 1804-1888
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Jaqen - CC BY-SA 3.0
Chambers, Aidan
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unknown - Public Domain
Davis, George E. (George Edward), -1907
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Ernst Hanfstaengl - Public Domain
Possart, Ernst von 1841-1921
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World Economic Forum - CC BY-SA 2.0
Livingstone, Ken, 1945-....
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Acton, John Emerich Edward Dalberg Acton, Baron, 1834-1902
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Ferster, Charles B., 1922-....
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Photographer-Romaine - Public Domain
Dragon, Carmen
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Neill, James George Smith, 1810-1857
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George Frederic Watts - Public Domain
Coxe, H.O. (Henry Octavius), 1811-1881
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Paramount - Public Domain
Coogan, Robert, 1925-1978
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Magnuson, Ann
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Jnlin - CC BY-SA 3.0
Noguchi, Hideyo, 1876-1928
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Wilson, James Grant, 1832-1914; Fiske, John, 1842-1901; Dick, Charles, 1858-; Homans, James Edward, 1865- - Public Domain
Archbold, John D. (John Dustin), 1848-1916
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original uploader - Public Domain
Kohl, J. G. (Johann Georg), 1808-1878
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Zhou, Huajian, 1960-
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The Bureau of Industrial Service for CBS-TV. The Bureau was a division of ad agency Young & Rubicam and was widely used by networks, studios and program sponsors for distributing publicity materials. - Public Domain
Bendix, William, 1906-1964