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:de:Benutzer:Ganescha - Public Domain
Gunnar Hovgård - CC BY 2.0
Cruccone - CC BY 3.0
Not credited - Public Domain
Unknown; scanned by 天竺鼠 - Public Domain
NASA/Ames Research Center - Public Domain
Godefroy Engelmann - Public Domain
John Hoskins (I) - Public Domain
unknown - Public Domain
American school of the 19th century -
No photographer credited - Public Domain
Matthisvalerie - CC BY-SA 4.0
James Lorenzo Bowen (1842-1919) - Public Domain
Miramaribelle - CC BY-SA 4.0
Assenmacher - CC BY-SA 3.0
Jennifer - CC BY-SA 2.0
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McEnery, Samuel Douglas, 1837-1910
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:de:Benutzer:Ganescha - Public Domain
Knorr von Rosenroth, Christian, Freiherr, 1636-1689
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Charcot, J. M. (Jean Martin), 1825-1893
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Monica, Saint, -387
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Gunnar Hovgård - CC BY 2.0
Mazur, Marilyn
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Aalto, Alvar, 1898-1976
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Metcalf, Theron, 1784-1875
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Cruccone - CC BY 3.0
Asensi, Matilde, 1962-....
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Not credited - Public Domain
Byroade, Henry A. (Henry Alfred), 1913-
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Figuier, Louis, 1819-1894
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Farrell, Doc, 1901-1966
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Unknown; scanned by 天竺鼠 - Public Domain
Hu, Shi, 1891-1962
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NASA/Ames Research Center - Public Domain
Pollack, James B.
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Godefroy Engelmann - Public Domain
Galli, Filippo, 1783-1853
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John Hoskins (I) - Public Domain
North, Dudley North, Baron, 1602-1677
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unknown - Public Domain
Vasey, George, 1822-1893
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American school of the 19th century -
Mason, Jonathan, 1756-1831
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No photographer credited - Public Domain
Jacobs, Orange, 1827-1914
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Arsac de Ternay, Charles Henry Louis d ̕, 1723-1780
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Pfitzner, Hans, 1869-1949
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Matthisvalerie - CC BY-SA 4.0
Bailey, David A.
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Howley, William, 1766-1848
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James Lorenzo Bowen (1842-1919) - Public Domain
Wild, Edward Augustus, 1825-1891
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Hulke, John Whitaker 1830-1895
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Tanimoto, Kiyoshi, 1909-1986
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Miramaribelle - CC BY-SA 4.0
Sheekman, Arthur, 1901-1978
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Assenmacher - CC BY-SA 3.0
Yun, Isang
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Jennifer - CC BY-SA 2.0
Alfonso, Kristian 1964-....
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Moore, George T. (George Thomas), 1871-1956
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unknown - Public Domain
Cushing, Alonzo H., 1841-1863