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User :pt:Joseolgon -
unknown - Public Domain
Anonymus - Public Domain
United States Weather Bureau - Public Domain
original uploader - Public Domain
Brady-Handy Photograph Collection (Library of Congress). - Public Domain
Mathew Brady - Public Domain
Mauro Bolognini - Public Domain
http://gutenberg.readingroo.ms/3/3/8/4/33840/33840-h/33840-h.htm - Public Domain
Prof. Therese Weber, Hergiswil, Schweiz - CC BY-SA 3.0
Roscoe C. E. Brown, Ray B. Smith - Public Domain
Tom Marcello - CC BY-SA 2.0
Matthew Crowley - CC BY 2.0
Scanned by user AlphaZeta, photographer unknown - Public Domain
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User :pt:Joseolgon -
Almada-Negreiros, José de, 1893-1970
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Bowers, Charles R., 1889-1946
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La Plante, Laura, 1904-1996
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unknown - Public Domain
Campbell, John, 1766-1840
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unknown - Public Domain
Carboni, Raffaello, 1817-1875
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Chichester of Belfast, Arthur Chichester, Baron, 1563-1625
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Lee, Teng-hui
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Anonymus - Public Domain
Wasielewski, Wilhelm Joseph von 1822-1896
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United States Weather Bureau - Public Domain
Landsberg, Helmut Erich, 1906-1985
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Clementi, Cecil, 1875-1947
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Brook, Peter, 1925-....
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original uploader - Public Domain
Lake, Arthur, 1905-1987
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Atwood, Robert B. (Robert Bruce), 1907-1997
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Gilman, Arthur D. (Arthur Delavan), 1821-1882
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Gray, William, 1750-1825
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Hellman, Jerome
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Suratt, Valeska, 1882-1962
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Brady-Handy Photograph Collection (Library of Congress). - Public Domain
Whaley, Kellian Van Rensalear, 1821-1876
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Mathew Brady - Public Domain
Meredith, Solomon, 1810-1875
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Mauro Bolognini - Public Domain
Schiaffino, Rosanna, 1939-2009
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http://gutenberg.readingroo.ms/3/3/8/4/33840/33840-h/33840-h.htm - Public Domain
Gebhart, Émile, 1839-1908
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Prof. Therese Weber, Hergiswil, Schweiz - CC BY-SA 3.0
Bäumer, Christoph
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Roscoe C. E. Brown, Ray B. Smith - Public Domain
Wadsworth, James Wolcott, 1846-1926
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Astor, Gertrude, 1887-1977
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Mlodinow, Leonard, 1954-....
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Tom Marcello - CC BY-SA 2.0
Heath, Percy, 1923-2005
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Matthew Crowley - CC BY 2.0
Romer, Roy, 1928-
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Ramée, Joseph Jacques, 1764-1842
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Córdova, Arturo de, 1908-1973
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Scanned by user AlphaZeta, photographer unknown - Public Domain
Thulstrup, Thure de, 1848-1930