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unknown - Public Domain
Public Domain
Studio of Peter Lely; - Public Domain
B. Braquehais - Public Domain
Theron Clark Crawford - Public Domain
George R. Lawrence Co., Chicago. - Public Domain
United States Senate Historical Office - Public Domain
Inna Penek - CC BY-SA 3.0
Sin datos, c. 1930 - Public Domain
Alan Light - CC BY 2.0
Open Media Ltd - CC BY-SA 3.0
The Granite Monthly magazine - Public Domain
Patrice Gilbert - CC BY-SA 3.0
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unknown - Public Domain
Hangal, Gangoobai, 1913-2009
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Biddle, William P. (William Phillips), 1853-1923
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unknown - Public Domain
Hopkins, Albert J. (Albert Jarvis), 1846-1922
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Edelsbrunner, Herbert.
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Grawitz, Ernst Robert, 1899-1945
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Public Domain
Bibb, William Wyatt, 1781-1820
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Studio of Peter Lely; - Public Domain
Egerton, Thomas, Sir, 1540?-1617
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Sidney, Henry, Sir, 1529-1586
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B. Braquehais - Public Domain
Saint-Léon, Arthur, 1821-1870
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unknown - Public Domain
Pfeiffer, Ludwig Georg Karl, 1805-1877
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Theron Clark Crawford - Public Domain
Blaine, Walker, -1890
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George R. Lawrence Co., Chicago. - Public Domain
Mucha, Alphonse, 1860-1939
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Wilkinson, John, 1798-1862
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unknown - Public Domain
Mathsson, Bruno, 1907-1988
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United States Senate Historical Office - Public Domain
Young, Richard Montgomery, 1798-1861
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Public Domain
Palmer, William, 1906-1987
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Jones, John Robert, 1828-1901
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Inna Penek - CC BY-SA 3.0
Menahemi, Ayelet
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Sin datos, c. 1930 - Public Domain
Portal, Magda, 1901-1989
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unknown - Public Domain
Clayton, William, 1814-1879
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Góngora y Argote, Luis de, 1561-1627
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Gordigiani, Michele, 1835-1909
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Alan Light - CC BY 2.0
Glaser, Paul Michael
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Open Media Ltd - CC BY-SA 3.0
Oldfield, Bruce, 1950-
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The Granite Monthly magazine - Public Domain
Smith, John Butler, 1838-1914
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Sandys, Duncan, 1908-1987
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Patrice Gilbert - CC BY-SA 3.0
Naylor, Phyllis Reynolds
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Manna, Gennaro, 1715-1779
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unknown - Public Domain
Duryea, Charles E., 1861-1938
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Berman, Sabina