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N509FZ - CC BY-SA 4.0
unknown - Public Domain
Paul Nadar - Public Domain
Public Domain
unidentified artist - Public Domain
University of Arizona - Public Domain
Prayn4peace - CC BY-SA 3.0
original uploader - Public Domain
Original uploader was :it:Deep also it - Public Domain
19photographer - Public Domain
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Salting, George, 1836-1909
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Arnautoff, Victor Michail, 1896-1979
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N509FZ - CC BY-SA 4.0
Chung, Kyung-Wha
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unknown - Public Domain
Manns, August Friedrich, Sir, 1825-1907
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Clifford, Thomas Clifford, Baron, 1630-1673
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Paul Nadar - Public Domain
Daudet, Léon, 1867-1942
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Ireland, Andy, 1930-
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King, Peter King, Lord, 1776-1833
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Public Domain
North, John Ringling, 1903-1985
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Public Domain
John VIII Palaeologus, Emperor of the East, 1392-1448
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Huston, Walter, 1884-1950
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Ward, Fannie, 1872-1952
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unidentified artist - Public Domain
Mignet, M. (François-Auguste-Marie-Alexis), 1796-1884
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Knudson, Alfred G. (Alfred George), 1922-
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Nussbaum, J. N. (Johann Nepomuk), Ritter von, 1829-1890
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University of Arizona - Public Domain
Bok, Bart J. (Bart Jan), 1906-1983
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Hicks, Thomas Holliday, 1798-1865
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Gaynor, Janet
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unknown - Public Domain
Siboni, Giuseppe, 1780-1839
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Prayn4peace - CC BY-SA 3.0
Wexler, Haskell
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unknown - Public Domain
Hanbury, Daniel, 1825-1875
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original uploader - Public Domain
Swan, Joseph Wilson, 1828-1914
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unknown - Public Domain
Berlinguer, Enrico
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unknown - Public Domain
Dick, Steven J.
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Original uploader was :it:Deep also it - Public Domain
Castelli, Benedetto, 1577 or 1578-1643
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Nell, William C. (William Cooper), 1816-1874
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Fabroni, A. (Angelo), 1732-1803
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19photographer - Public Domain
Ristori, Adelaide, 1822-1906
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Jenness, Diamond, 1886-1969
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Cortelyou, George Bruce, 1862-1940