Image from Wikimedia Commons
Lock the Gate Alliance - CC BY 2.0
unknown - Public Domain
Adolf Dauthage - Public Domain
Marcelo Costa - CC BY 2.0
Sailko - CC BY 3.0
Unknown author - Public Domain
Public Domain
No photographer credited. - Public Domain
Karel Maixner (1840 - 1881) - Public Domain
Photograph Curator -
https://www.flickr.com/photos/vagueonthehow/ - CC BY 2.0
*:File:US_Horse_Arty_BG_officers_-_Culpepper_Sep_1863.jpg - Public Domain
unknown / фотограф неизвестен - Public Domain
Published by R.F. Fenno & Co, New York, 1896 - Public Domain
Photo not credited in any obvious way - Public Domain
Photograph - Public Domain
Image from Wikimedia Commons
Rosen, Philip E., 1888-1951
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Acciaiuoli, Niccolò, 1310-1365
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Lock the Gate Alliance - CC BY 2.0
Henderson, Sarah, 1971-
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Eichinger, Bernd
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unknown - Public Domain
Lea, Preston, 1841-1916
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Adolf Dauthage - Public Domain
Wolf, Ferdinand, 1796-1866
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Marcelo Costa - CC BY 2.0
Oiticica, Hélio, 1937-1980
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Sailko - CC BY 3.0
Landriani, Paolo, 1754-1839
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Unknown author - Public Domain
Phelips, Edward, approximately 1555-1614
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unknown - Public Domain
Caussin de Perceval, A. P. (Armand Pierre), 1795-1871
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Gogolʹ, Nikolaĭ Vasilʹevich, 1809-1852
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Public Domain
Griswold, O. W. (Oscar Woolverton), 1886-1959
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No photographer credited. - Public Domain
Lincoln, Jeanie Gould, 1846-1921
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Godwin, E. W. (Edward William), 1833-1886
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Karel Maixner (1840 - 1881) - Public Domain
Sabina, Karel, 1813-1877
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Merrill, Gary
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Tomioka, Tessai, 1837-1924
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Photograph Curator -
Wassell, Corydon McAlmont, 1884-
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Cremony, John Carey, 1815-1879
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Geiler von Kaysersberg, Johann, 1445-1510
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Lance, Bert, 1931-2013
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https://www.flickr.com/photos/vagueonthehow/ - CC BY 2.0
Hartley, Justin, 1977-
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*:File:US_Horse_Arty_BG_officers_-_Culpepper_Sep_1863.jpg - Public Domain
Graham, William Montrose, Jr., 1834-1916
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Curtin, John, 1885-1945
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Babelʹ, I. (Isaak), 1894-1940
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unknown / фотограф неизвестен - Public Domain
Danilov, I︠U︡. N. (I︠U︡riĭ Nikiforovich), 1866-
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Published by R.F. Fenno & Co, New York, 1896 - Public Domain
Gissing, George, 1857-1903
Image from Wikimedia Commons
Photo not credited in any obvious way - Public Domain
McGraw, John Harte, -1910
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Milne, John, 1850-1913
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Photograph - Public Domain
Peabody, Andrew P. (Andrew Preston), 1811-1893