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Photographer(s) unknown / not credited -
Originally uploaded by Mmtrebuchet - Public Domain
Ирина Лепнёва - CC BY-SA 3.0
U.S. Govt. - Public Domain
Elena Torre - CC BY-SA 2.0
unknown - Public Domain
Gage Skidmore - CC BY-SA 3.0
Jonathan Underland - CC BY 3.0
unknown -
Public Domain
photo Tim Ross, painting anonymous - Public Domain
NN - Public Domain
NASA - Public Domain
Engraved by S. Freeman from an original in Marischal College, Aberdeen - Public Domain
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Solomon, Solomon J. (Solomon Joseph), 1860-1927
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Photographer(s) unknown / not credited -
Dresden, Sem
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Miller, Lee, 1907-1977
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Thomas, Dylan, 1914-1953
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Originally uploaded by Mmtrebuchet - Public Domain
James, Dennis, 1950-....
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Ирина Лепнёва - CC BY-SA 3.0
Petty, Tom
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U.S. Govt. - Public Domain
Saltzman, Charles E. (Charles Eskridge), 1903-1994
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Kean, Thomas H., 1935-
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Elena Torre - CC BY-SA 2.0
Hopkins, Anthony, 1937-....
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unknown - Public Domain
Gille, Philippe, 1831-1901
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Gage Skidmore - CC BY-SA 3.0
Burke, Billy
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Jonathan Underland - CC BY 3.0
Watkins, Sean
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Miller, Oskar von 1855-1934
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Bazaine, Jean, 1904-2001
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Sprengel, Kurt Polycarp Joachim, 1766-1833
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Zack, Arnold
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Moretti, Luigi, 1907-1973
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Kinnaird, Arthur, 1814-1887
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unknown -
Hoffmann, Heinrich, 1809-1894
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Public Domain
Ansted, D. T. (David Thomas), 1814-1880
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photo Tim Ross, painting anonymous - Public Domain
Baltzell, Thomas, -1866
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NN - Public Domain
Mohl, Julius, 1800-1876
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Le Courayer, Pierre-François, 1681-1776
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Rosselli, Cosimo, 1439-1507
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NASA - Public Domain
Young, John, 1930-2018
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Engraved by S. Freeman from an original in Marischal College, Aberdeen - Public Domain
Cant, Andrew, 1590?-1663
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unknown - Public Domain
Fleming, Peter, 1907-1971
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Ward, John, 1704-1773
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Sullivant, William Starling, 1803-1873
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Rochlitz, Friedrich, 1769-1842