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:de:Rudolf Dührkoop - Public Domain
Public Domain
George Grantham Bain Collection (Library of Congress) - Public Domain
Unknown photographer of the USMC Signal Corps - Public Domain
etiennecoutu - CC BY 2.0
user at project - CC BY 3.0
NBC Television - Public Domain
Victor Mordechai Goldschmidt - Public Domain
unknown - Public Domain
Bassano Ltd - Public Domain
William Stevens Perry - Public Domain
E. F. Foley, N. Y. - Public Domain
J. Stuart Blackton Feature Pictures / Vitagraph - Public Domain
Pastelitodepapa - CC0 1.0
Simon Fraser University - University Communications - CC BY 2.0
J. Moss ? - Public Domain
Daderot -
George Vertue - Public Domain
Ronzoni - CC BY-SA 3.0
Illegible - Public Domain
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Schiff, Jacob H. (Jacob Henry), 1847-1920
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Villegas, Armando, 1928-
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:de:Rudolf Dührkoop - Public Domain
Kekulé, Reinhard, 1839-1911
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Cabel, Marie 1827-1885
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Public Domain
Volkmer, Harold L. (Harold Lee), 1931-2011
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Tharaud, Jean, 1877-1952
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George Grantham Bain Collection (Library of Congress) - Public Domain
Meštrović, Ivan, 1883-1962
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Unknown photographer of the USMC Signal Corps - Public Domain
Maas, Melvin Joseph, 1898-1964
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etiennecoutu - CC BY 2.0
Bergeron, Richard, 1955-....
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user at project - CC BY 3.0
Laing, Corky
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NBC Television - Public Domain
Harris, Phil, 1904-1995
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Victor Mordechai Goldschmidt - Public Domain
Goldschmidt, Victor, 1853-1933
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unknown - Public Domain
Williams, Amancio
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unknown - Public Domain
Rains, Gabriel James, 1803-1881
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Bassano Ltd - Public Domain
Clifford, Bede, 1890-1969
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William Stevens Perry - Public Domain
Randall, George M. (George Maxwell), 1810-1873
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E. F. Foley, N. Y. - Public Domain
Chinn, May Edward, 1896-
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Altomonte, Martino, 1657-1745
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Góis, Damião de, 1502-1574
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J. Stuart Blackton Feature Pictures / Vitagraph - Public Domain
Dean, Louis, 1876-1933
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Pastelitodepapa - CC0 1.0
Nelson, Russell Marion
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Simon Fraser University - University Communications - CC BY 2.0
Crozier, Lorna, 1948-....
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J. Moss ? - Public Domain
Fitzgerald, Cissy, 1873-1941
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Le Monnier, M. (Pierre-Charles), 1715-1799
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unknown - Public Domain
Chadwick, George Whitefield
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Daderot -
Old House (Quincy, Mass.)
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Low, George M.
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George Vertue - Public Domain
Edwards, John, 1637-1716
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Ronzoni - CC BY-SA 3.0
Gould, Harold, 1923-2010
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Illegible - Public Domain
Delavigne, Casimir, 1793-1843