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unknown - Public Domain
Contemporary photograph - Public Domain
Mathew Brady - Public Domain
Alvintrusty - CC BY-SA 3.0
Nicolas Pastor - CC BY-SA 3.0
Ben P L - CC BY-SA 2.0
Internet Archive Book Images -
:File:Milan Zeleny a Myron Tribus.jpg: author - CC BY-SA 3.0
Mathew Brady Levin Corot Handy - Public Domain
original uploader -
anonymous -
Harris & Ewing - Public Domain
John Partridge (1790-1872) - Public Domain
Samuel van Hoogstraten - Public Domain
Chateau de Ramezay, Montreal - Public Domain
original uploader - Public Domain
Sroeben - CC BY-SA 3.0
Motion Picture Classic Magazine - Public Domain
Leslie Cashen - CC BY 1.0
Devi Prasad -
Alliance of Automobile Manufacturers - CC BY-SA 2.0
Benson John Lossing - Public Domain
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unknown - Public Domain
Epiphanius, Saint, Bishop of Constantia in Cyprus, approximately 310-403
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Contemporary photograph - Public Domain
Ritschl, Albrecht, 1822-1889
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Hyvernat, Henri, 1858-1941
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unknown - Public Domain
Noble, Patrick, 1787-1840
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Mathew Brady - Public Domain
Clark, Daniel, 1809-1891
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Alvintrusty - CC BY-SA 3.0
Kellogg, Steven
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Nicolas Pastor - CC BY-SA 3.0
Delaunay, Michèle M. 1947-...
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Toledo, Pedro de 1484-1553
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Ben P L - CC BY-SA 2.0
Madsen, Carol Cornwall, 1930-
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Internet Archive Book Images -
Petrie, George, 1790-1866
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:File:Milan Zeleny a Myron Tribus.jpg: author - CC BY-SA 3.0
Tribus, Myron.
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Mathew Brady Levin Corot Handy - Public Domain
Kernan, Francis, 1816-1892
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original uploader -
Paton, Alan
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anonymous -
Liesegang, Raphael Ed. (Raphael Eduard), 1869-1947
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Harris & Ewing - Public Domain
Montague, Andrew Jackson, 1862-1937
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John Partridge (1790-1872) - Public Domain
Hodgson, Joseph, 1788-1869
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Samuel van Hoogstraten - Public Domain
Hoogstraten, Samuel van 1627-1678
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Wells, Jacqueline, 1914-2001.
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Chateau de Ramezay, Montreal - Public Domain
Chartier de Lotbinière, Michel, 1723-1798
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original uploader - Public Domain
Desmarets de Saint-Sorlin, Jean, 1595-1676
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Sroeben - CC BY-SA 3.0
Fleischer, Charles
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Motion Picture Classic Magazine - Public Domain
McDowell, Clare, 1877-1966
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Floris, Frans, 1519 or 1520-1570
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Leslie Cashen - CC BY 1.0
Ludwig, Ken
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Devi Prasad -
Fry, A. Ruth (Anna Ruth), 1878-1962
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Asso y del Río, Ignacio Jordán de, 1742-1814
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Alliance of Automobile Manufacturers - CC BY-SA 2.0
McCurdy, Dave, 1950-
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Sulzberger, Mayer, 1843-1923
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Benson John Lossing - Public Domain
Boyd, John Parker, 1764-1830
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Roosevelt, Eleanor, 1884-1962