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Davidsimon6682 - CC BY-SA 3.0
International Bee Research Association -
David Griffiths - CC BY-SA 3.0
White House photographer Robert Knudsen - Public Domain
Anne Brigman - Public Domain
unknown photographer - Public Domain
Javier López Bernardo - CC BY-SA 3.0
unknown - Public Domain
GregJameson - CC BY-SA 4.0
Phil Guest - CC BY-SA 2.0
George Grantham Bain Collection (Library of Congress) - Public Domain
Charles Wiener - Public Domain
Stereoscopic Co. (that's how it's listed on the original stereoscope) - Public Domain
Paulbecker1 - CC BY-SA 4.0
jeffdunncom - CC BY 2.0
U.S. Government Printing Office. - Public Domain
Godfrey Kneller - Public Domain
Wilmanx12 - CC BY-SA 3.0
Félix Nadar - Public Domain
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Davidsimon6682 - CC BY-SA 3.0
Simon, Solomon, 1895-1970
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International Bee Research Association -
Crane, Eva.
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David Griffiths - CC BY-SA 3.0
Ellis, Osian
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George II, King of Great Britain, 1683-1760
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White House photographer Robert Knudsen - Public Domain
Nehru, B. K. (Braj Kumar), 1909-2001
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Gooch, Robert, 1784-1830
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Anne Brigman - Public Domain
Brigman, Anne, 1869-1950
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unknown photographer - Public Domain
Princip, Gavrilo, 1894-1918
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Javier López Bernardo - CC BY-SA 3.0
Godley, Wynne.
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unknown - Public Domain
Freeman, James, 1759-1835
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GregJameson - CC BY-SA 4.0
Gillespie, Robert, 1933-
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Ruthven, Alexander Grant, 1882-1971
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Phil Guest - CC BY-SA 2.0
Delaney, Frank, 1942-....
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George Grantham Bain Collection (Library of Congress) - Public Domain
Best, Edna, 1900-1974
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Cybulski, Zbigniew, 1927-1967
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Charles Wiener - Public Domain
Wiener, Charles
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Stereoscopic Co. (that's how it's listed on the original stereoscope) - Public Domain
Reuter, Florizel von 1890-1985
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Paulbecker1 - CC BY-SA 4.0
Becker, Paul
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jeffdunncom - CC BY 2.0
Callaway, Ann Hampton
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Vattimo, Gianni, 1936-....
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U.S. Government Printing Office. - Public Domain
Curtis, Thomas B. (Thomas Bradford), 1911-1993
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Godfrey Kneller - Public Domain
Pell, John, 1611-1685
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Morley, Walter
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Loew, H. (Hermann), 1807-1879
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Gates, Horatio, 1728-1806
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Slobodkin, Lawrence B.
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Wilmanx12 - CC BY-SA 3.0
McGeoch, John
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Félix Nadar - Public Domain
Verne, Jules, 1828-1905
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Still, A. T. (Andrew Taylor), 1828-1917
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Rossi, Karl Ivanovich, 1775-1849