Image from Wikimedia Commons
Timob - CC BY-SA 3.0
NA - Public Domain
Sonsaz -
unknown - Public Domain
Carl Størmer - CC BY-SA 3.0
Self portrait - Public Domain
Gage Skidmore - CC BY-SA 3.0
William Aikman - Public Domain
Engraved by D. J. Pound from a photograph by Mayall - Public Domain
Artist unidentified - Public Domain
Public Domain
unknown -
GFHund - CC BY 3.0
Erik Salvén - Public Domain
Sean Carrillo - CC BY 2.5
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Timob - CC BY-SA 3.0
Buffet, Bernard, 1928-1999
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NA - Public Domain
Chaudoir, M. de (Maximilien), baron, 1817-1881
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Zugmayer, Eric
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Salfeld, Siegmund, 1843-1926
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Sonsaz -
Moses ben Shem Tov, de Leon, 1250-1305
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unknown - Public Domain
Ziegler, Karl Waldemar, 1898-1973
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Carl Størmer - CC BY-SA 3.0
Geelmuyden, H. (Hans), 1844-1920
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Anderson, Earl E., 1919-
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Self portrait - Public Domain
Santa María, Andrés de 1860-1945
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Gage Skidmore - CC BY-SA 3.0
Barone, Michael.
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Hunter, Robert, 1666-1734
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William Aikman - Public Domain
Clerk, John, Sir, 1676-1755
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unknown - Public Domain
Calvin, Jean, 1509-1564
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Engraved by D. J. Pound from a photograph by Mayall - Public Domain
Canning, Charles John, 1812-1862
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Lombard, Lambert, 1506-1566
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Lyman, Lauren D. (Lauren Dwight), 1891-1971
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unknown - Public Domain
Blatchford, Samuel, 1820-1893
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Artist unidentified - Public Domain
Strong, Josiah, 1847-1916
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Buckingham and Chandos, Richard Temple Nugent Brydges Chandos, Duke of, 1776-1839
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Public Domain
Fuller-Maitland, John Alexander
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Massard, A. (Armand), 1884-
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Jabotinsky, Eri, 1910-1969
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unknown -
Tresham, Francis, 1567?-1605
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Vidocq, Eugène François, 1775-1857
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GFHund - CC BY 3.0
Jost, Res, 1918-
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Lanz, Hubert, 1896-1982
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Erik Salvén - Public Domain
Catherine, of Sweden, Saint, 1331-1381
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Sean Carrillo - CC BY 2.5
Hansen, Al, 1927-1995
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unknown - Public Domain
Lintner, J. A. (Joseph Albert), 1822-1898
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Thomas, Llewellyn Hilleth.