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CBS Network - Public Domain
Gage Skidmore - CC BY-SA 3.0
unknown - Public Domain
The Browns - Public Domain
George M. Bergman, Berkeley - Public Domain
Rossetti - Public Domain
Georges Biard - CC BY-SA 3.0
Colmer, Montagu, and Charles Erskine Scott Wood - Public Domain
Leannestaples - CC0 1.0
Praemium Erasmianum Foundation - CC BY-SA 4.0
Unknown 19th century artist - Public Domain
Ambroise Tardieu - Public Domain
Johannes Oertel - Public Domain
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Webb, Roy, 1888-1982
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D'Orsay, Fifi, 1904-1983
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CBS Network - Public Domain
Burkley, Dennis
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Gage Skidmore - CC BY-SA 3.0
Bassett, Angela, 1958-
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Pallavicini, Stefano Benedetto, 1672-1742
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unknown - Public Domain
Magsaysay, Ramon, 1907-1957.
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unknown - Public Domain
Smith, Lot
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The Browns - Public Domain
Walker, Maggie Lena, 1867-1934
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George M. Bergman, Berkeley - Public Domain
Chern, Shiing-shen 1911-2004
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Garnett, Muscoe R. H. (Muscoe Russell Hunter), 1821-1864
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Rossetti - Public Domain
Bassi, Ugo, 1801-1849
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Georges Biard - CC BY-SA 3.0
Thompson, Emma
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Colmer, Montagu, and Charles Erskine Scott Wood - Public Domain
George, M. C. (Melvin Clark), 1849-1933
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Denman, George, 1819-1896
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Vallerand, Jean, 1915-1994
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Winthrop, John, 1714-1779
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Leannestaples - CC0 1.0
Vaccaro, Tony, 1922-
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Courtney, Frederick, né 1837
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Praemium Erasmianum Foundation - CC BY-SA 4.0
Becher, Bernd, 1931-2007
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Thatcher, Margaret, 1925-2013
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unknown - Public Domain
Zwach, John M. (John Matthew), 1907-1990
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Beaumont, John Thomas Barber, 1774-1841
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unknown - Public Domain
Turberville, George, 1540?-1610?
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Lin, Huaimin
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unknown - Public Domain
Camden, John Jeffreys Pratt, Marquis of, 1759-1840
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Unknown 19th century artist - Public Domain
Talbot, Thomas, 1818-1886
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Ambroise Tardieu - Public Domain
Saussure, Horace-Bénédict de 1740-1799
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Johannes Oertel - Public Domain
Jasper, William, approximately 1750-1779
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Taylor, Vincent Albert, 1845-1922
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Johnston, Joseph E. (Joseph Eggleston), 1807-1891