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unknown - Public Domain
Pittore44 - CC BY-SA 3.0
Rijksmuseum - CC0 1.0
Joel Rickenbach - CC BY-SA 2.0
Brady-Handy Photograph Collection (Library of Congress) - Public Domain
United States Navy photograph - Public Domain
Gerardus - Public Domain
Léopold-Émile Reutlinger - Public Domain
Leslie Ward - Public Domain
The American University in Cairo - Public Domain
Harris & Ewing, Inc. - Public Domain
Unknown 18th century Italian engraver - Public Domain
Not specified, owned by John F. Kennedy Presidential Library and Museum, Boston - Public Domain
Moshe Pridan - Public Domain
William F. Nolan - Public Domain
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Henrey, Bobby, 1939-
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Ihering, H. von (Hermann), 1850-1930
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Lane, Ebenezer, 1793-1866
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Liberi, Pietro
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unknown - Public Domain
Olmsted, Frederick Law, 1822-1903
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Williams, Bransby, 1870-1961
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Pittore44 - CC BY-SA 3.0
Sostre, Martin, 1923-
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unknown - Public Domain
Gallegos, José Manuel, 1815-1875
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Bow, Frank T. (Frank Townsend), 1901-1972
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Kirkpatrick, A. A. (Andrew Alexander), 1848-1928
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Custine, Adam Philippe, comte de, 1740-1793
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Rijksmuseum - CC0 1.0
Bidloo, Govard, 1649-1713
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Joel Rickenbach - CC BY-SA 2.0
Hicks, Catherine, 1951-
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Brady-Handy Photograph Collection (Library of Congress) - Public Domain
Boyd, Belle, 1844-1900
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United States Navy photograph - Public Domain
Ingersoll, Stuart H. (Stuart Howe), 1898-1983
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Gerardus - Public Domain
Dodeigne, Eugène, 1923-....
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Whipple, Edwin Percy, 1819-1886
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Léopold-Émile Reutlinger - Public Domain
Andral, Paule 1879-1956
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Leslie Ward - Public Domain
Eardley-Wilmot, John E. (John Eardley), Sir, 1810-1892
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The American University in Cairo - Public Domain
Watson, Charles R. (Charles Roger), 1873-1948
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Dickson, Oscar
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Harris & Ewing, Inc. - Public Domain
Bankhead, John Hollis, 1872-1946
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Hénault, Charles-Jean-François, 1685-1770
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unknown - Public Domain
Hamilton, Edith, 1867-1963
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Unknown 18th century Italian engraver - Public Domain
Bellisomi, Carlo 1736-1808 card
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Not specified, owned by John F. Kennedy Presidential Library and Museum, Boston - Public Domain
Mowrer, Hadley Hemingway, 1891-1979
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Moshe Pridan - Public Domain
Levitt, Arthur, 1900-1980
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unknown - Public Domain
Stone, Kimbrough, 1875-
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William F. Nolan - Public Domain
Fritch, Charles E., 1927-
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Thring, Henry Thring, Baron, 1818-1907