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Public Domain
Århus universitet - Public Domain
w:Prafulla Chandra Ray - Public Domain
shay aloni - CC BY-SA 2.5
s/d. Siglo XIX - Public Domain
Jan gebert - CC BY-SA 3.0
Edmund Harburger - Public Domain
Martin Droeshout - Public Domain
Bain News Service, publisher - Public Domain
Slowking -
Kadellar -
unknown - Public Domain
''Masmid 1979'' (collective work). - Public Domain
Dujardin - Public Domain
Nv8200p - CC BY-SA 4.0
original uploader - Public Domain
anonymous -
Chopradio - CC BY-SA 4.0
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Public Domain
Ferguson, Mary Nisbet, 1777-1855
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Michaelis, Leonor, 1875-1949
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Århus universitet - Public Domain
Lehmann, Jorgen
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Ramin, Günther, 1898-1956
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w:Prafulla Chandra Ray - Public Domain
Ray, Prafulla Chandra, 1861-1944
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shay aloni - CC BY-SA 2.5
Eitan, Raphael, 1929-2004
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Baratieri, Oreste.
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s/d. Siglo XIX - Public Domain
Odriozola, Manuel de, 1804-1889
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Jan gebert - CC BY-SA 3.0
Gebert, Bolesław, 1895-1986
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Edmund Harburger - Public Domain
Harburger, Edmund, 1846-1906
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Martin Droeshout - Public Domain
Howson, John, 1557?-1632
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Stanford, Leland, 1824-1893
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Bain News Service, publisher - Public Domain
Gaillard, David Du Bose, 1859-1913
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Powell, Baden, 1937-2000
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Hobsbawm, E. J. (Eric J.), 1917-
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Slowking -
Creedon, Carolyn
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Effen, Justus van 1684-1735
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Steinberg, Isaac Nachman, 1888-1957
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Kadellar -
Glover, Roger
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unknown - Public Domain
Nichols, Kid, 1869-1953
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''Masmid 1979'' (collective work). - Public Domain
Lifshitz, David, 1907-
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unknown - Public Domain
Fitzgerald, R. D. (Robert David), 1830-1892
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unknown - Public Domain
Marquet, Albert, 1875-1947
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Dujardin - Public Domain
Cavaillé-Coll, Aristide, 1811-1899
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Nv8200p - CC BY-SA 4.0
Stavans, Ilan
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Vos, Cornelis de, 1584 or 1585-1651
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original uploader - Public Domain
Bible, Alan, 1909-1988
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Mould, J. Wrey (Jacob Wrey), 1825-1886
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anonymous -
Alford, Kenneth J.
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Chopradio - CC BY-SA 4.0
Kailath, Thomas