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unknown photographer - Public Domain
Wurl-Berlin - CC BY-SA 4.0
Jshapiro - CC BY-SA 3.0
David - CC BY 2.0
Sulfur -
Mark Zip - CC BY-SA 4.0
Emilius Bærentzen and C. M. Tegner - Public Domain
unknown - Public Domain
Thomas Gainsborough - Public Domain
US Gov - Public Domain
No photographer credited - Public Domain
Arnold Genthe - Public Domain
Stedman1 - Public Domain
original uploader - Public Domain
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Hopper, Edward, 1882-1967
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unknown photographer - Public Domain
Franklin, Sidney A., 1893-1972
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Wurl-Berlin - CC BY-SA 4.0
Blech, Leo, 1871-1958
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Leutze, Emanuel, 1816-1868
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Jshapiro - CC BY-SA 3.0
Horkheimer, Max, 1895-1973
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David - CC BY 2.0
Kendrick, Dolores, 1927-....
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Sulfur -
Juneau, Solomon Laurent, 1793-1856
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Mark Zip - CC BY-SA 4.0
Joseph, Allison, 1967-
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Poletika, Petr Ivanovich, 1778-1849
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Mallery, Garrick, 1831-1894
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Emilius Bærentzen and C. M. Tegner - Public Domain
Nielsen, Anna, 1803-1856
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Marcello, Benedetto
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unknown - Public Domain
Uriburu, Nicolás García, 1937-...
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Pigot, George, Baron, 1719-1777
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Gorman, Willis Arnold, 1816-1876
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Herring, Augustus Moore, 1867-1926
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Miklas, Wilhelm 1872-1956
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La Follette, Robert M. (Robert Marion), 1895-1953
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Boucher, Victor
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Thomas Gainsborough - Public Domain
Graves, Thomas Graves, 1725?-1802
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US Gov - Public Domain
Adams, Brock, 1927-2004
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No photographer credited - Public Domain
Jollie, Ethel Tawse
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Arnold Genthe - Public Domain
Duncan, Isadora, 1877-1927
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Prokovsky, André
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Koteas, Elias, 1961-....
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Stedman1 - Public Domain
Whiting, William Henry Chase, 1824-1865
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Aderholt, Harry C.
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Lissagaray, 1838-1901
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Murphy, Jimmy, 1891-1965
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original uploader - Public Domain
Bain, Andrew Geddes, 1797-1864