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Henry Donovan - Public Domain
Alphone Legros - Public Domain
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Biblioteca Nacional de España - Public Domain
US gov - Public Domain
unknown - Public Domain
Ahlem1975 - CC BY-SA 4.0
National Science Foundation - Public Domain
Louis-Joseph Fanelli-Semah (peintre), Napoléon Thomas (graveur), Bernard et Frey (lithographes). - Public Domain
ja - Public Domain
John Yates - CC BY-SA 3.0
Johannes Brugman, Vita Lijdwine (Schiedam 1498). - Public Domain
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Public Domain
Grant Duff, Mountstuart E. (Mountstuart Elphinstone), Sir, 1829-1906
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Henry Donovan - Public Domain
Lawson, Victor Freemont, 1850-1925
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Alphone Legros - Public Domain
Prinsep, Val C. (Val Cameron), 1838-1904
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McCarthy, Kevin, 1914-2010
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Tasma, 1848-1897
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Battie, William, 1704-1776
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Hopkins, William, 1793-1866
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Petrović, Aleksandar, 1929-1994
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Hopkins, Mark, 1802-1887
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Chillingworth, William, 1602-1644
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Anton, Peter, 1963-
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Biblioteca Nacional de España - Public Domain
Torres Villarroel, Diego de 1693-1770
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McDonnell, Patrick, 1956-
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Griffith, Andy, 1926-2012
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Thomas, Theodore, 1835-1905
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US gov - Public Domain
Robertson, A. Willis (Absalom Willis), 1887-1971
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Public Domain
Engle, Clair, 1911-1964
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unknown - Public Domain
Sorel, Georges, 1847-1922
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unknown - Public Domain
Smyth, R. Brough (Robert Brough), 1830-1889
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Ahlem1975 - CC BY-SA 4.0
Allouache, Merzak
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unknown - Public Domain
Christie, Richard Copley, 1830-1901
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National Science Foundation - Public Domain
National Medal of Science.
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Louis-Joseph Fanelli-Semah (peintre), Napoléon Thomas (graveur), Bernard et Frey (lithographes). - Public Domain
Dupin, M. (André-Marie-Jean-Jacques), 1783-1865
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unknown - Public Domain
Saegmuller, George N. (George Nicholas), 1847-1934
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ja - Public Domain
Suzuki, Daisetz Teitarō, 1870-1966
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unknown - Public Domain
Waters, Francis, 1792-1868
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John Yates - CC BY-SA 3.0
Ice M.C. 1965-....
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Silvester, Peter Henry, 1807-1882
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Johannes Brugman, Vita Lijdwine (Schiedam 1498). - Public Domain
Lydwina, Saint, 1380-1433
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Sawyer, Frederick Adolphus, 1822-1891