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original uploader - Public Domain
unknown - Public Domain
Public Domain
c - Public Domain
I, Klugschnacker - CC BY-SA 3.0
HarvardEthics - CC BY 2.0
Jean Ritter (deceased) - Public Domain
The Caldwell Center for Culture and Ecology -
Marcelo de Montalvão - CC BY-SA 4.0
John Payne - Public Domain
gdcgraphics at https://www.flickr.com/photos/gdcgraphics/ -
Smithsonian Institution -
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original uploader - Public Domain
Ford, John Thompson, 1829-1894
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unknown - Public Domain
Naundorff, Karl Wilhelm, 1785?-1845
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Public Domain
Patten, Zeboim Cartter, 1840-1925
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unknown - Public Domain
Harris, George, 1844-1922
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Vollard, Ambroise, 1867-1939
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c - Public Domain
Horton, Johnny, 1925-1960
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I, Klugschnacker - CC BY-SA 3.0
ʻAli ibn Riḍwān, -approximately 1068
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Formes, Karl, 1815-1889
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unknown - Public Domain
Ångström, Knut, 1857-1910
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HarvardEthics - CC BY 2.0
Wolff, Jonathan, 1959-
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Jean Ritter (deceased) - Public Domain
Ritter, Paul, 1925-
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Francesco, da Milano, 1497-1543
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The Caldwell Center for Culture and Ecology -
Caldwell, Lynton Keith, 1913-....
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Marcelo de Montalvão - CC BY-SA 4.0
Garcia, Léa 1933-
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Potter, Philip Cipriani Hambly, 1792-1871
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Public Domain
Gilbert, Eddie, -1978
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Adams, Frank Dawson, 1859-1942
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Fumagalli, Adolfo, 1828-1856
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Poiret, Paul
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Cooper, Melville, 1896-1973
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McKibben, Bill.
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John Payne - Public Domain
Payne, John ca. 1607-ca. 1647
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gdcgraphics at https://www.flickr.com/photos/gdcgraphics/ -
Ward, Rachel, 1957-
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Channing, Edward Tyrrel, 1790-1856
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unknown - Public Domain
Okakura, Kakūzo, 1862-1913
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Smithsonian Institution -
Cresson, Margaret French, 1889-1973
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Public Domain
Johnson, George W., 1811-1862
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Bailey, Alice, 1880-1949
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Senefelder, Alois, 1771-1834
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Shaughnessy, Clark Daniel, 1892-1970