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Unattributed - Public Domain
unknown - Public Domain
Nadar (1820-1910) - Public Domain
Luís Aleixo Boulanger - Public Domain
Hell&Fischer Philadelphia - Public Domain
Brianmcmillen - CC BY-SA 3.0
Inasaridse - Public Domain
Heide Hatry - CC BY 3.0
team art in berlin - CC BY-SA 2.0
Jan Rubinowicz -
Ildiko Dao - CC BY-SA 3.0
Dick Thomas Johnson - CC BY 2.0
original uploader - Public Domain
Erik Hustad - CC BY 2.0
Mathew Brady - Public Domain
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King, Edward, 1794-1873
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Unattributed - Public Domain
Koczalski, Raoul, 1884-1948
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unknown - Public Domain
Spare, Austin Osman, 1886-1956
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Gemini 10 (Spacecraft)
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Nadar (1820-1910) - Public Domain
Beauvoir, Roger de 1806-1866
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Luís Aleixo Boulanger - Public Domain
Silva, Francisco Manuel da, 1795-1865
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Prentiss, Benjamin M. (Benjamin Mayberry), 1819-1901
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Hell&Fischer Philadelphia - Public Domain
Mendenhall, Thomas C. (Thomas Corwin), 1841-1924
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Day, Jeffrey, 1896-1918
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Evans-Gordon, W. (William), 1857-1913
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Brianmcmillen - CC BY-SA 3.0
Jefferson, Eddie, 1918-1979
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Gardner, Obadiah, 1852-
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Inasaridse - Public Domain
Araiza, Francisco
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Bloembergen, N.
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Stamm, Ted
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Heide Hatry - CC BY 3.0
Hatry, Heide
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team art in berlin - CC BY-SA 2.0
Sugimoto, Hiroshi, 1948-....
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unknown - Public Domain
Cernei, Elena
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Jan Rubinowicz -
Rubinowicz, Wojciech
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Raskin, Jef, 1943-2005
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Ildiko Dao - CC BY-SA 3.0
Lamuniere, Simon
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Baer, Steve, 1938-
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Dick Thomas Johnson - CC BY 2.0
Konishi, Manami, 1978-
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Cignani, Carlo, 1628-1719
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original uploader - Public Domain
Pillsbury, Harry Nelson, 1872-1906
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Erik Hustad - CC BY 2.0
Mankiewicz, Tom
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Landau, L. D. (Lev Davidovich), 1908-1968
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Mathew Brady - Public Domain
Thayer, Eli, 1819-1899
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Cook, Joel, 1842-1910
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Beaugrand, Honoré (1849-1906).