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unknown - Public Domain
Maurice Quentin de La Tour - Public Domain
Bain - Public Domain
Lisbeth Medbøe Risnes - CC BY-SA 4.0
Edward Sanford Harrison (editor-publisher); photographer unknown - Public Domain
New York World-Telegram and the Sun staff photographer: Albertin, Walter, photographer. - Public Domain
nicolas genin - CC BY-SA 2.0
Mathew Brady - Public Domain
Georges Biard - CC BY-SA 3.0
own work - Public Domain
María Mulas - CC BY-SA 4.0
unknown - CC0 1.0
Ross Burgess - CC BY-SA 3.0
summonedbyfells - CC BY 2.0
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Strasser, Gregor, 1892-1934
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unknown - Public Domain
Bacon, Nicholas, Sir, 1509-1579
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Maurice Quentin de La Tour - Public Domain
Demours, Pierre, 1702-1795
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Zwingli, Ulrich, 1484-1531
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Torelli, Giuseppe, 1658-1709
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Bain - Public Domain
Winterhalter, Albert G. (Albert Gustavus), 1856-
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unknown - Public Domain
Kendal, Madge, 1849-1935
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Lisbeth Medbøe Risnes - CC BY-SA 4.0
Thommessen, Olav Anton, 1946-....
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Hogan, Hulk, 1953-
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Edward Sanford Harrison (editor-publisher); photographer unknown - Public Domain
Rowe, P. T. (Peter Trimble), 1856-1942
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Mehta, Ketan
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New York World-Telegram and the Sun staff photographer: Albertin, Walter, photographer. - Public Domain
Behan, Brendan
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Festa, Costanzo, -1545
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Martini, Alberto, 1876-1954
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La Vauguyon, Paul-François de Quélen de Stuer de Caussade, duc de, 1746-1828
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nicolas genin - CC BY-SA 2.0
Sharif, Omar, 1932-....
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Borghese, Camillo, 1775-1832
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unknown - Public Domain
Stephan, Martin, 1777-1846
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Mathew Brady - Public Domain
Ferris, Isaac, 1798-1873
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Boscovich, Ruggero Giuseppe, 1711-1787
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Georges Biard - CC BY-SA 3.0
Blier, Bertrand
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Tift, Nelson, 1810-1891
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own work - Public Domain
Medici, G.
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Harlow, Jean, 1911-1937
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Leiber, Justin
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María Mulas - CC BY-SA 4.0
Eielson, Jorge Eduardo
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Nicolini, Ernest, 1834-1898
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unknown - CC0 1.0
Zapata de Mendoza, Antonio, 1550-1635
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Ross Burgess - CC BY-SA 3.0
Gosling, Ray, 1939-2013
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summonedbyfells - CC BY 2.0
Paterson, Don, 1963-....