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Casa le roche - CC BY-SA 3.0
Unattributed - Public Domain
Louis Abel Beffroy de Reigny (1757-1811) - Public Domain
unknown photographer - Public Domain
James Russell (1809 - 1899) and Sons - Public Domain
user at project - CC BY-SA 2.5
Mathew Brady Levin Corot Handy - Public Domain
Tony_1212 - CC BY-SA 4.0
University of Pennsylvania - Public Domain
unknown - Public Domain
T. Kelly - Public Domain
Environmental Protection Agency - Public Domain
I, Klugschnacker - CC BY-SA 3.0
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Portolá, Gaspar de
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Parker, Cecilia, 1914-1993
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Gooding, Frank Robert, 1859-1928
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Casa le roche - CC BY-SA 3.0
Jeanneret, Pierre, 1896-1967
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Switzer, Carl, 1927-1959
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Unattributed - Public Domain
Fumasoni-Biondi, Pietro, 1872-1960
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Louis Abel Beffroy de Reigny (1757-1811) - Public Domain
Beffroy de Reigny, L.-A. (Louis-Abel), 1757-1811
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unknown photographer - Public Domain
Menasci, Guido
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Leistikow, Walter, 1865-1908
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Samchuk, Ulas
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James Russell (1809 - 1899) and Sons - Public Domain
Dannreuther, Edward, 1844-1905
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user at project - CC BY-SA 2.5
McKechnie, Donna
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Mariani, Angelo, 1821-1873
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Mathew Brady Levin Corot Handy - Public Domain
Bayard, James A. (James Asheton), 1799-1880
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Tony_1212 - CC BY-SA 4.0
Crary, Dan
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Grüninger, Paul, 1891-
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Ackoff, Russell Lincoln, 1919-2009
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Ballantine, William, 1812-1887
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Bigelow, Erastus B. (Erastus Brigham), 1814-1879
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University of Pennsylvania - Public Domain
Alexander, Raymond Pace, 1898-1974
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Fauchard, Pierre, 1678-1761.
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unknown - Public Domain
Hobart, Harrison Carroll, 1815-1902
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T. Kelly - Public Domain
Holley, Horace, 1781-1827
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Saint-Pierre, Bernardin de 1737-1814
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unknown - Public Domain
Lakeman, Stephen, 1823-
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Environmental Protection Agency - Public Domain
Costle, Douglas M. (Douglas Michael), 1939-2019
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Mitra, Dīnabandhu 1829-1874
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Van Heijenoort, Jean, 1912-1986
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unknown photographer - Public Domain
Herreshoff, Nathanael Greene, 1848-1938
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I, Klugschnacker - CC BY-SA 3.0
ʻAli ibn Riḍwān, -approximately 1068