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Atelier Trude Geiringer (1890–1981) & Dora Horovitz (1897–19??), - Public Domain
Man2mars28 - CC BY-SA 4.0
Unknown - Public Domain
Hill & Adamson - Public Domain
United States Congress - Public Domain
Masahiro Sumori (Sumori - CC BY-SA 3.0
Alexander Runciman - Public Domain
Michael Albov - CC BY 2.0
Bern1971 - CC0 1.0
Julius Giere - Public Domain
Unknown. This print was taken from the ''Los Angeles Times.''<br/> - Public Domain
Gage Skidmore - CC BY-SA 3.0
Carl Van Vechten - Public Domain
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Atelier Trude Geiringer (1890–1981) & Dora Horovitz (1897–19??), - Public Domain
Stabile, Mariano
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Aronson, Boris, 1900-1980
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Man2mars28 - CC BY-SA 4.0
Kennedy, X.J.
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Dempsey, Jack, 1862-1895
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Arnott, Neil, 1788-1874
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Unknown - Public Domain
Cavallotti, Felice, 1842-1898
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Mather, Cotton, 1663-1728
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Poggi, Giuseppe, 1811-1901
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Hill & Adamson - Public Domain
Adamson, Robert, 1821-1848
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Anglesey, Henry William Paget, Marquis of, 1768-1854
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Polovt︠s︡ov, A. A. (Aleksandr Aleksandrovich), 1832-1909
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Amenábar, Alejandro, 1972-
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Dyson, Ruth, 1957-
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United States Congress - Public Domain
Abraham, Ralph, 1954-
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Torriente, Cosme de la 1872-
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Smythies, Charles Alan, 1844-1894
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Masahiro Sumori (Sumori - CC BY-SA 3.0
King, Earl
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Parlo, Dita
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Thomson, Allen, 1809-1884
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Alexander Runciman - Public Domain
Runciman, Alexander, 1736-1785
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Michael Albov - CC BY 2.0
Evans, Dixie
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Ben-Haim, Zigi, 1945-
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Bern1971 - CC0 1.0
Parreñas, Rhacel Salazar.
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Julius Giere - Public Domain
Sertürner, Friedrich Wilhelm 1783-1841
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Brooke of Warwick Castle, George Greville, Earl, 1746-1816
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Unknown. This print was taken from the ''Los Angeles Times.''<br/> - Public Domain
Conaty, Thomas James, 1847-1915
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Unknown - Public Domain
Ausonius, Decimus Magnus
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Chevreuse, Marie de Rohan, duchesse de, 1600-1679
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Gage Skidmore - CC BY-SA 3.0
Owen, James A.
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Carl Van Vechten - Public Domain
Seldes, Marian