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unknown - Public Domain
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Thomas Dix, Grenzach, http://www.dix-fotodesign.de - CC BY-SA 2.0
Adolphe Cohen - Public Domain
Norman Nithman - CC BY 2.0
Unknown<br><small>〔original uploader - Public Domain
Nadar - Public Domain
Josep Renalias - CC BY-SA 3.0
Hortense.throgmorton - Public Domain
Joi - CC BY 2.0
Christian Cariño - CC BY-SA 3.0
United States Navy - Public Domain
GuyMaddinDir - CC BY-SA 3.0
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unknown - Public Domain
Gatto, Alfonso, 1909-1976
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Silver Horn, 1860-1940
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Original image is from a drawing by w:en:William_Hogarth - Public Domain
Fielding, Henry, 1707-1754
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unknown - Public Domain
Cournot, A.A. (Antoine Augustin), 1801-1877
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unknown - Public Domain
Stephenson, William Samuel, 1896-1989
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Martynov, Leonid, 1905-1980
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Hooch, Pieter de
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Lovejoy, Elijah P. (Elijah Parish), 1802-1837
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Thomas Dix, Grenzach, http://www.dix-fotodesign.de - CC BY-SA 2.0
Tarr, Edward H.
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National Museum of Natural History (U.S.)
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Adolphe Cohen - Public Domain
Haan, D. Bierens de (David Bierens), 1822-1895
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Norman Nithman - CC BY 2.0
Sawyer, Eugene, 1934-2008
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Unknown<br><small>〔original uploader - Public Domain
Gerdt, Pavel Andreevich, 1844-1917
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Nadar - Public Domain
Galli-Marié, Celéstine, 1840-1905
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Josep Renalias - CC BY-SA 3.0
Aguiló y Fustér, Mariano, 1825-1897
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Keller, Pius
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Calomarde, Francisco Tadeo 1773-1842
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Breguet, L.
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Funk, Casimir, 1884-1967
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Deming, W. Edwards (William Edwards), 1900-1993
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Aldrovandi, Ulisse, 1522-1605?
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Hortense.throgmorton - Public Domain
Tranter, John E.
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Giuliani, Rudolph W.
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Joi - CC BY 2.0
Omidyar, Pierre, 1967-
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Willes, John, Sir, 1685-1761
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Christian Cariño - CC BY-SA 3.0
Caso, Alfonso, 1896-1970
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Annenkov, I︠U︡riĭ, 1889-1974
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United States Navy - Public Domain
Phelps, Thomas Stowell, 1822-1901
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GuyMaddinDir - CC BY-SA 3.0
Maddin, Guy
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Joop, Wolfgang, 1944-....