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unknown - Public Domain
"Revue illustrée" - Public Domain
Public Domain
Catholic Westminster, Diocese of Westminster - CC BY 2.0
Glyn Philpot (1884-1937) - Public Domain
Dr. Gastón Guzmán - CC BY 3.0
(To be confirmed/sehr unsicher:) Hans Schickhardt (1512-1585) - Public Domain
nicolas genin - CC BY-SA 2.0
Umpleby - CC BY-SA 3.0
W. Graham Boss - Public Domain
Charles Fenderich - Public Domain
Elliott & Fry - Public Domain
Ermell - CC BY 3.0
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Cobain, Kurt, 1967-1994
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unknown - Public Domain
Hopkins, Albert J. (Albert Jarvis), 1846-1922
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"Revue illustrée" - Public Domain
Gervex, Henri, 1852-1929
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Public Domain
Cooper, Edward, 1824-1905
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Dahl, Roald, 1916-1990
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Alerding, Herman Joseph, 1845-1924
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Catholic Westminster, Diocese of Westminster - CC BY 2.0
Morris, Alfred, 1928-2012
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Glyn Philpot (1884-1937) - Public Domain
Whitley, J. H.
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Whittlesey, Faith Ryan
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unknown - Public Domain
Hutchinson, J. Edward (Jesse Edward), 1914-1985
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Tough, Dave
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Lea, Isaac, 1792-1886
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Ashmead-Bartlett, Ellis, 1881-1931
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unknown - Public Domain
Alippi, Elías 1883-1942.
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Dr. Gastón Guzmán - CC BY 3.0
Guzmán, Gastón
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(To be confirmed/sehr unsicher:) Hans Schickhardt (1512-1585) - Public Domain
Schegk, Jakob, 1511-1587
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nicolas genin - CC BY-SA 2.0
Docter, Pete
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Umpleby - CC BY-SA 3.0
Umpleby, Stuart A.
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W. Graham Boss - Public Domain
Anderson, Robert Rowand, Sir, 1834-1921
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unknown - Public Domain
Chasles, Philarète, 1798-1873
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Public Domain
Keisler, Peter
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Charles Fenderich - Public Domain
Thompson, Waddy, 1798-1868
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Elliott & Fry - Public Domain
Strachey, John, Sir, 1823-1907
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Charles 6, Holy Roman Emperor
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Meirelles, Fernando
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Pease, Joseph, 1799-1872
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Lindheimer, Ferdinand, 1802-1879
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Ermell - CC BY 3.0
Stein, Horst, 1928-2008
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Ayguals de Izco, Wenceslao, 1801-1873
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Nicholson, John A. (John Anthony), 1827-1906