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Otto Wegener (1849-1922) - Public Domain
Н.Г. Маджи. - Public Domain
Published by L. C. Page and company, Boston, 1903 - Public Domain
unknown - Public Domain
Lea Ahlborn - Public Domain
National Media Museum -
Environmental Protection Agency - Public Domain
Biblioteca Nacional de España - Public Domain
Slowking -
angeltoad, derived from original artwork pre 1887 (public news image in that year) - Public Domain
Charles Roscoe Savage - Public Domain
United States Congress - Public Domain
Convallaria - CC BY-SA 2.0
Published by Hurst and Company, NY - Public Domain
L. R. Hamersly & Co. - Public Domain
Original uploader was :fr:Polmars - Public Domain
Image from Wikimedia Commons
Otto Wegener (1849-1922) - Public Domain
Verlaine, Paul, 1844-1896
Image from Wikimedia Commons
Н.Г. Маджи. - Public Domain
Ershov, P. P. (Petr Pavlovich), 1815-1869
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Graham, Nan Wood
Image from Wikimedia Commons
Published by L. C. Page and company, Boston, 1903 - Public Domain
Dunne, Finley Peter, 1867-1936
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unknown - Public Domain
Rebouças, André Pinto, 1838-1898
Image from Wikimedia Commons
Thomas, Dave, 1949-
Image from Wikimedia Commons
Lea Ahlborn - Public Domain
Dalman, Johan Wilhelm, 1787-1828
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Kim, Dae Jung, 1925-2009
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National Media Museum -
Whitfield, Mal, 1924-
Image from Wikimedia Commons
Rippon, John, 1751-1836
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Wheelock, Lucy.
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unknown - Public Domain
Barnett, Tom P., 1870-1929
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Environmental Protection Agency - Public Domain
Costle, Douglas M. (Douglas Michael), 1939-2019
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Biblioteca Nacional de España - Public Domain
Torres Villarroel, Diego de 1693-1770
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Slowking -
Tichy, Susan, 1952-
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Meulen, Henry
Image from Wikimedia Commons
angeltoad, derived from original artwork pre 1887 (public news image in that year) - Public Domain
Chipp, Edmund Thomas, 1823-1886
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Holman, William Steele, 1822-1897
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Patchett, Ann
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Charles Roscoe Savage - Public Domain
Ottinger, George M. (George Martin), 1833-1917
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United States Congress - Public Domain
Schock, Aaron, 1981-
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Survage, Léopold (1879-1968).
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Hägerström, Axel, 1868-1939
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Starry, Donn A. (Donn Albert), 1925-2011
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Convallaria - CC BY-SA 2.0
Cuber, Ronnie
Image from Wikimedia Commons
Published by Hurst and Company, NY - Public Domain
Günter, Archibald Clavering (1847-1907).
Image from Wikimedia Commons
L. R. Hamersly & Co. - Public Domain
Hamlin, Charles, 1837-1911
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Warner, Sidney S. (Sidney Sardus), 1829-1908
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Accursio, Mariangelo, 1489-1546
Image from Wikimedia Commons
Original uploader was :fr:Polmars - Public Domain
Camus, Armand-Gaston, 1740-1804