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LucLewitanski - CC BY-SA 3.0
E. E. Friedrich T. Schenck (1811-1885) - Public Domain
John Vanderlyn - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
original uploader - Public Domain
unknown - Public Domain
Österreichisches Außenministerium - CC BY 2.0
Renate Bertlmann - CC BY-SA 4.0
Slowking4 -
Kadellar -
White House staff photographer - Public Domain
Catriona Sparks - CC BY-SA 2.0
unknown, but copyright belongs to Mr. Rabe's estate - CC BY-SA 3.0
RICHARDJRBP - CC BY-SA 3.0
Unknown - but from more than 100 years ago - Public Domain
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LucLewitanski - CC BY-SA 3.0
Novatt, Jedd, 1958-....
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E. E. Friedrich T. Schenck (1811-1885) - Public Domain
Brisbane, Thomas, Sir, 1773-1860
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Lye, Edward, 1694-1767
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Pareja y Díez Canseco, Alfredo 1908-1993
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Dini, Ulisse, 1845-1918
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John Vanderlyn - Public Domain
Vanderlyn, John, 1775-1852
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Aguiar, Joaquim Antonio de
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Mathew Brady Levin Corot Handy - Public Domain
Magoffin, Beriah, 1815-1885
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original uploader - Public Domain
Lazaro, Ladislas, 1872-1927
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Rimmer, William, 1816-1879
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Hamilton, Robert, 1743-1829
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unknown - Public Domain
Cory, Fanny Y.
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Bordet, Jules, 1870-1961
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Österreichisches Außenministerium - CC BY 2.0
Gavran, Miro, 1961-....
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Renate Bertlmann - CC BY-SA 4.0
Bertlmann, Renate, 1943-....
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Slowking4 -
Schnackenberg, Gjertrud
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Whitney, Caspar, 1862?-1929
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Xu, Anhua
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Kadellar -
Schenker, Rudolf, 1948-
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White House staff photographer - Public Domain
Cha, Victor D., 1961-....
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Nonnberg (Abbey)
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Catriona Sparks - CC BY-SA 2.0
Yarbro, Chelsea Quinn, 1942-....
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unknown, but copyright belongs to Mr. Rabe's estate - CC BY-SA 3.0
Rabe, Peter
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Jeans, Isabel, 1891-1985
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RICHARDJRBP - CC BY-SA 3.0
Lasso, Gloria
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Turton, Thomas, 1780-1864
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Verco, Jos. C. (Joseph C.), 1851-1933
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unknown - Public Domain
Garnier, Tony, 1869-1948
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Cooke, Nicholas, 1717-1782
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Unknown - but from more than 100 years ago - Public Domain
Pise, Charles Constantine, 1801-1866