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unknown - Public Domain
Stephenbuck415 - CC BY-SA 3.0
Benjamin Krahl - Public Domain
Fradelle & Marshall. - Public Domain
Ser Amantio di Nicolao - CC BY-SA 3.0
:Category:Charles Carey - Public Domain
Spacerockunit - Public Domain
(extracted by:) Jochen Burghardt -
No illustrator named in original source. - Public Domain
Thomas Pennant - Public Domain
Armando Spadini - Public Domain
Elke Wetzig (Elya - CC BY-SA 3.0
Adolf Dauthage - Public Domain
Sailko - CC BY 3.0
Andrea Graziosi with additional digital editing by Tim Davenport for Wikipedia.. - CC BY-SA 3.0
Simpson, Colin - Public Domain
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unknown - Public Domain
Barker, Alfred Charles
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Stephenbuck415 - CC BY-SA 3.0
Birimisa, George
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unknown - Public Domain
Caldwell, Joseph, 1773-1835
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Melville, George Wallace, 1841-1912
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unknown - Public Domain
Gavazzeni, Gianandrea.
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unknown - Public Domain
Gates, Elmer, 1859-1923
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Benjamin Krahl - Public Domain
DeBoer, Nicole, 1970-
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Yogananda, paramahansa, 1893-1952
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Fradelle & Marshall. - Public Domain
Mellon, Sarah Jane, 1824-1909
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Wied, Maximilian, Prinz von, 1782-1867
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Ser Amantio di Nicolao - CC BY-SA 3.0
Tate, Jerod Impichcha̲achaaha̕, 1968-
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:Category:Charles Carey - Public Domain
Véron, Louis Désiré, 1798-1867
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Dicenta, Joaquín, 1862-1917
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Ferro, Pablo
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Ring, Blanche, 1871-1961
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Silliman, Benjamin, 1779-1864
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Leonardo, da Vinci, 1452-1519
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Spacerockunit - Public Domain
Grenier, Jean, 1898-1971
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Davy, John, 1790-1868
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(extracted by:) Jochen Burghardt -
Payne, Fernandus, 1881-1977
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No illustrator named in original source. - Public Domain
Philp, Elizabeth, 1825-1885
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Thomas Pennant - Public Domain
Tucker, Josiah, 1712-1799
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Armando Spadini - Public Domain
Spadini, Armando, 1883-1925
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Elke Wetzig (Elya - CC BY-SA 3.0
Dürrenmatt, Friedrich
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Cañete, Manuel, 1822-1891
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unknown - Public Domain
Hauser, Samuel Thomas, 1833-1914
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Adolf Dauthage - Public Domain
Lanner, August J. (August Joseph), 1834-1855
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Sailko - CC BY 3.0
Preciado de la Vega, Francisco, 1712-1789
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Andrea Graziosi with additional digital editing by Tim Davenport for Wikipedia.. - CC BY-SA 3.0
Lewin, Moshe, 1921-2010
Image from Wikimedia Commons
Simpson, Colin - Public Domain
Hall, William Reginald, 1870-1943