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unknown -
Francesco Bartolozzi - Public Domain
unknown photographer - Public Domain
Steve Bowbrick - CC BY 2.0
john wollaston - Public Domain
Charles Balthazar Julien Févret de Saint-Mémin - Public Domain
Elliott & Fry - Public Domain
Public Domain
Dguasta - CC BY-SA 4.0
Tamás Urbán - CC BY-SA 3.0
Rdhara - Public Domain
original uploader - Public Domain
anonymous -
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Smith, Benjamin, 1756-1826
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unknown -
Kronig, R. (Ralph), 1904-
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Francesco Bartolozzi - Public Domain
Pérez, David
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Reagan, Maureen, 1941-2001
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unknown photographer - Public Domain
Booth, William, 1829-1912
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Nicholas, Paul, 1945-
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Steve Bowbrick - CC BY 2.0
Te Kanawa, Kiri
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Zeno, Carlo, 1334-1418
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Clark, George Rogers, 1752-1818
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Kessel, Joseph, 1898-1979
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Hofstadter, Robert, 1915-1990
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john wollaston - Public Domain
Calvert, Benedict Leonard, 1700-1732
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Cook, Carla (Vocalist)
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unknown -
Iványi-Grünwald, Béla
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Strange, Robert, Sir, 1721-1792
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Charles Balthazar Julien Févret de Saint-Mémin - Public Domain
Sitgreaves, Samuel, 1764-1827
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Elliott & Fry - Public Domain
Gilbert, W.S. (William Schwenck), 1836-1911
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Public Domain
Hawes, Harry Bartow, 1869-1947
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Page, Horace F. (Horace Francis), 1833-1890
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Howard, Terrence
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Wen, Zhengming, 1470-1559
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Dguasta - CC BY-SA 4.0
Nanni, Giovanni, 1432?-1502
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Luther, Hans, 1879-1962
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Tamás Urbán - CC BY-SA 3.0
Borsos, Miklós 1906-1990
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Carver, Raymond, 1938-1988
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Raban, Zeʼev, 1890-1970
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Rdhara - Public Domain
Bertell, Rosalie, 1929-
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original uploader - Public Domain
Braga, J. P.
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Achenbach, Oswald, 1827-1905
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anonymous -
Morand, Paul, 1888-1976