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after Cornelis Janssens van Ceulen - Public Domain
unknown -
unknown - Public Domain
Ian Dunster - Public Domain
Slowking4 -
Man2mars28 - CC BY-SA 4.0
William Owen (1769-1825) - Public Domain
Georges Biard - CC BY-SA 3.0
Public Domain
Ketevan Magalashvili - Public Domain
Cwellesley - CC BY-SA 4.0
Eric Connolly - Public Domain
KushiInstitute - CC BY 2.0
mikebarry - CC BY-SA 2.0
Institute of Policy Studies - CC BY 2.0
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Howe, Lyman H., 1856-1923
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Blount, Willie, 1768-1835
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Caldwell, Tod Robinson, 1818-1874
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Peppard, George, 1928-1994
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after Cornelis Janssens van Ceulen - Public Domain
Digges, Dudley, Sir, 1583-1639
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Southard, Samuel L. (Samuel Lewis), 1787-1842
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Morazán, Francisco (1792-1842).
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Ricci, Marco, 1676-1729?
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unknown -
Roberts, Tom, 1856-1931
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Best, Elsdon, 1856-1931
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William I, King of the Netherlands, 1772-1843
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unknown - Public Domain
Letchworth, William Pryor, 1823-1910
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Ian Dunster - Public Domain
Sopwith, Thomas, Sir, 1888-1989
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Slowking4 -
Biss, Eula
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Man2mars28 - CC BY-SA 4.0
Kennedy, X.J.
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William Owen (1769-1825) - Public Domain
Scott, William, Baron Stowell, 1745-1836
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Georges Biard - CC BY-SA 3.0
Kinski, Klaus
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unknown - Public Domain
Wilson, Arnold Talbot, Sir, 1884-1940
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Public Domain
Sheridan, Thomas, 1719-1788
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Ketevan Magalashvili - Public Domain
Gudiašvili, Lado, 1896-1980
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Roberts, Jane, 1929-1984
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Cwellesley - CC BY-SA 4.0
Lou, Liza, 1969-...
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Eric Connolly - Public Domain
Krishnamoorthi, Raja, 1973-
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KushiInstitute - CC BY 2.0
Kushi, Michio
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Carnahan, James, 1775-1859
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Wray, William
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Ostrovsky, Aleksandr Nikolaevich, 1823-1886
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mikebarry - CC BY-SA 2.0
Memphis bleek
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Beccafumi, Domenico, 1486-1551
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Institute of Policy Studies - CC BY 2.0
Landau, Saul.