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U.S.Navy - Public Domain
unknown - Public Domain
121a0012 - CC BY 3.0
Unknown - Public Domain
Mathew Brady - Public Domain
:de:Benutzer:Smokeonthewater - Public Domain
the Oxford Dictionary of National Biography - Public Domain
John Singer Sargent - Public Domain
'''IVIC''' (Instituto Venezolano de Investigaciones Científicas) -
Sir Harold Nicholas -
Michael Evans -
Lord.Nosferatu - CC BY 2.0
user at project - CC BY 3.0
NASA - Public Domain
... - Public Domain
Idko - CC BY-SA 3.0
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McKelvey, James
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U.S.Navy - Public Domain
Strand, K. Aage (Kaj Aage), 1907-2000
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Barnes, George N. (George Nicoll), 1859-1940
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Wanders, Marcel
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Stryjeńska, Zofia, 1894-1976
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Aretino, Pietro, 1492-1556
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unknown - Public Domain
Unruh, Hans Victor von 1806-1886
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121a0012 - CC BY 3.0
Fano, Robert M.
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Unknown - Public Domain
Lyman, Theodore, 1833-1897
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Golladay, J. S. (Jacob Shall), 1819-1887
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Godley, Alexander, Sir, 1867-1957
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Tessarini, Carlo, approximately 1690-approximately 1766
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Holliday, John Henry, 1851-1887
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Mathew Brady - Public Domain
Marcy, William L. (William Learned), 1786-1857
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:de:Benutzer:Smokeonthewater - Public Domain
Quadflieg, Will
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unknown - Public Domain
Couthouy, Joseph Pitty, 1808-1864
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unknown - Public Domain
Gleason, William Henry, 1829-1902
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the Oxford Dictionary of National Biography - Public Domain
Müller, F. Max (Friedrich Max), 1823-1900
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John Singer Sargent - Public Domain
Ribblesdale, Thomas Lister, Baron, 1854-1925
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Levyns, Margaret R.
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'''IVIC''' (Instituto Venezolano de Investigaciones Científicas) -
Fernández Morán Villalobos, Humberto, 1924-1999
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Sir Harold Nicholas -
Wragge, Clement L. (Clement Lindley), 1852-1922
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Smith, Sidney E. (Sidney Earle), 1897-1959
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Michael Evans -
McLaughlin, Ann Dore, 1941-
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Clark, Andrew, 1826-1893
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Lord.Nosferatu - CC BY 2.0
Thompson, Brian, 1959-
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user at project - CC BY 3.0
Sharabi, Shalom, 1720-1777
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NASA - Public Domain
Gemini 1 (Spacecraft)
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... - Public Domain
Hovey, Richard, 1864-1900
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Idko - CC BY-SA 3.0
Casteret, Norbert, 1897-?