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Jcfalch - CC BY-SA 3.0
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unknown -
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Attilio Simonetti - Public Domain
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Bain - Public Domain
Ellis - Public Domain
Post of Ecuador - Public Domain
Dstager - CC BY-SA 4.0
Craig ONeal - CC BY-SA 2.0
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Ferguson, Casson, 1891-1929
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Jcfalch - CC BY-SA 3.0
Layton, Joe, 1931-
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Aytoun, William Edmondstoune, 1813-1865
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Keith, Arthur, Sir, 1866-1955
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Bīrūnī, Muhammad ibn Ahmad, 973?-1048
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Strzygowski, Josef, 1862-1941
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Leontief, Wassily, 1906-1999
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Smith, William Sooy, 1830-1916
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Steinberg, Isaac Nachman, 1888-1957
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Alvaritodimetu - CC BY-SA 4.0
Campanella, Bruno, 1943-....
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Bdubay - CC BY-SA 3.0
Hennacy, Ammon, 1893-1970
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Wharton, Philip Wharton, Baron, 1613-1696
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Hains, T. Jenkins (Thornton Jenkins), 1866-
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Public Domain
Flavelle, Joseph, 1858-1939
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Norfolk, Henry Howard, Duke of, 1655-1701
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Attilio Simonetti - Public Domain
Simonetti, Attilio, 1843-1925
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Marchesi, Pompeo, 1790-1858
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Jmontbarron - CC BY-SA 4.0
Barron, Jeannette Montgomery, 1956-
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Gelb, Peter
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Clark, William Tierney, 1783-1852
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Bain - Public Domain
Woodward, Robert Simpson, 1849-1924
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Bates, Sidney, -1944
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Smith, Ethel, 1902-1996
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Schomberg, Friedrich Hermann Schomberg, Duke of, 1615-1690
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Ellis - Public Domain
Lorimer, George Horace, 1868-1937
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Post of Ecuador - Public Domain
Larrea Holguín, Juan.
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Dstager - CC BY-SA 4.0
Reaves, Michael
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Public Domain
Stephens, G. W. (George Washington), 1866-1942
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Craig ONeal - CC BY-SA 2.0
Strait, George, 1952-....
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Walters, Luana, 1912-1963