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afromusing - CC BY 2.0
Charles Shannon - Public Domain
Mark Winograd - Public Domain
unknown - Public Domain
Original uploader was ACT1 -
Artist unidentified - Public Domain
Atelier Nadar - Public Domain
Eugene Allan Smith - Public Domain
Public Domain
User at project link - Public Domain
U.S. Department of Energy - Public Domain
Gerritt Schipper - Public Domain
MichaelNetzer - CC BY-SA 3.0
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afromusing - CC BY 2.0
Jeremijenko, Natalie
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Charles Shannon - Public Domain
Moore, T. Sturge (Thomas Sturge), 1870-1944
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Mark Winograd - Public Domain
Cochran, Johnnie L., 1937-2005
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Edward Augustus, Prince, Duke of Kent, 1767-1820
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Hudson, Thomas, 1701-1779
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unknown - Public Domain
Pedreira, Antonio Salvador, 1899-1939
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Debret, François, 1777-1850
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Original uploader was ACT1 -
Kalogridis, Jeanne
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Dwight, Henry Williams, 1788-1845
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unknown - Public Domain
Blasius, Wilhelm, 1845-1912
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Artist unidentified - Public Domain
Merry, Robert, 1755-1798
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Atelier Nadar - Public Domain
Gondinet, Edmond, 1828-1888
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unknown - Public Domain
King, A. F. A. (Albert Freeman Africanus), 1841-1914
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Eugene Allan Smith - Public Domain
Tuomey, M. (Michael), 1805-1857
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Chapple, W. A. (William Allan), 1864-1936
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Public Domain
Palmer, William Adams, 1781-1860
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User at project link - Public Domain
Zedda, Alberto
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U.S. Department of Energy - Public Domain
Szilard, Leo
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Vişoianu, Constantin 1897-1994
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Fjare, Orvin B. (Orvin Benonie), 1918-
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Gerritt Schipper - Public Domain
Richardson, John, 1755?-1831
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Hood, Alexander 1726-1814
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Wilcoxon, Henry, 1905-1984
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Le Roy Ladurie, Emmanuel
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MichaelNetzer - CC BY-SA 3.0
Spurgeon, Tom, 1968-
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McMichael, Morton, 1807-1879
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Wycliffe, John, -1384
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Dicksee, Francis Bernard, Sir, 1853-1928
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Munro, Neil, 1864-1930
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Vieussens, Raymond, 1641?-1715