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unknown - Public Domain
first upload to German Wikipedia by :de:Benutzer:Hoss - Public Domain
unknown - CC BY-SA 3.0
Etienne (Li) - CC BY-SA 3.0
Mathew Brady - Public Domain
Sailko - CC BY-SA 3.0
Grand Canyon NPS - CC BY 2.0
Cdonges - CC0 1.0
author - Public Domain
Oaktree b -
Dick DeMarsico, World Telegram staff photographer - Public Domain
:en:NBC - Public Domain
Alfred Stieglitz - Public Domain
original uploader - Public Domain
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unknown - Public Domain
Boto, António, 1897-1959
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Ellison, T. R. (Thomas Rangiwahia), 1866-1904
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Ulmann, Doris, 1882-1934
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Gullberg, Hjalmar, 1898-1961
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Atherton, Ray, 1883-1960
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unknown - Public Domain
Penn, Alexander, 1906-1972
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first upload to German Wikipedia by :de:Benutzer:Hoss - Public Domain
Böhm, Hans approximately 1450-1476
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unknown - CC BY-SA 3.0
Teilhard de Chardin, Pierre
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Cumberland, George Clifford, Earl of, 1558-1605
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Etienne (Li) - CC BY-SA 3.0
Tacchinardi, Niccola, 1772-1859
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La Luzerne, César-Guillaume de, 1738-1821
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Hobbema, Meindert, 1638-1709
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Mathew Brady - Public Domain
Deering, Nathaniel C. (Nathaniel Cobb), 1827-1887
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Sailko - CC BY-SA 3.0
Anacreon
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Grand Canyon NPS - CC BY 2.0
Naqavoy'ma, 1900-1986
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Lavoisier, Antoine-Laurent, 1743-1794
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unknown - Public Domain
Gogh, Theo van 1857-1891
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Cdonges - CC0 1.0
Rowles, John, 1947-
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author - Public Domain
Eckart, Dietrich, 1868-1923
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Troward, T. (Thomas), 1847-1916
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unknown - Public Domain
Rice, Tom, 1808-1860
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Oaktree b -
Stone, W. Clement, 1902-2002
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Dick DeMarsico, World Telegram staff photographer - Public Domain
Argerich, Martha, 1941-...
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Wong, Russell, 1963-
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Chapple, W. A. (William Allan), 1864-1936
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:en:NBC - Public Domain
Kelly, Brian, 1931-2005
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Collingwood, Cuthbert Collingwood, Baron, 1750-1810
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Alfred Stieglitz - Public Domain
Marin, John, 1870-1953
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original uploader - Public Domain
Evans, Daniel J., 1925-
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unknown - Public Domain
Recto, Claro M., 1890-1960