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unknown - Public Domain
Nadar (1820-1910) - Public Domain
idem - CC BY 4.0
EraserGirl - Public Domain
Arthur James Gammack - Public Domain
US gov - Public Domain
Gerardus - Public Domain
unknown. Uploaded, stitched and restored by Jebulon - Public Domain
Theron Brown - Public Domain
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unknown - Public Domain
Terrot, Charles Hughes, 1790-1872.
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Levine, Gail Carson
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Nadar (1820-1910) - Public Domain
Muratore, Lucien
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Leistikow, Walter, 1865-1908
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idem - CC BY 4.0
Belli, Melvin M., 1907-1996
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Janauschek, Fanny 1829-1904
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Vetch, Samuel, 1668-1732
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unknown - Public Domain
Sargent, Charles Sprague, 1841-1927
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Herlihy, Ed
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Clapton, Eric
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EraserGirl - Public Domain
Gibson, Helen, 1894-1977
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West, William H., 1853-1902
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unknown - Public Domain
Pace, Edward A. (Edward Aloysius), 1861-1938
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Brick, Abraham Lincoln, 1860-1908
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Paquin, Jeanne, 1869-1936
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unknown - Public Domain
Sloan, William Gibson, 1838-1914
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Last, Nella
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Coninxloo, Gillis van, 1544-1606
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Hayek, August von 1871-1928
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Friedman, Menachem
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Arthur James Gammack - Public Domain
Barnes, John S. (John Sanford), 1836-1911
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US gov - Public Domain
Young, S. B. M. (Samuel Baldwin Marks), 1840-1924
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Gerardus - Public Domain
Houshiary, Shirazeh, 1955-
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Keane, R. V. (Richard Valentine), 1882-1946
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unknown. Uploaded, stitched and restored by Jebulon - Public Domain
Winterhalter, Franz Xaver, 1805-1873
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Theron Brown - Public Domain
Bacon, George B. (George Blagden), 1836-1876
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Watson, William, Sir, 1715-1787
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Jacquier, François, 1711-1788
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unknown - Public Domain
Olden, Rudolf, 1885-1940
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Gulick, Luther Halsey, 1828-1891