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| "Jean Kolitsch, 1909." Courtesy Ralf De Jonge. |
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| Count Gustaf Mauritz Armfelt in Florence, by Louis Gauffier, 1793. |
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| "Young Peasant Laughing", by Ferdinand Georg Waldmüller, 1840. |
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| The artist Paul Victor Grandhomme, attributed to Raphaël Collin, circa 1870s. |
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| Unknown, by Emile Legagneur, active 1892-1933. Courtesy Ralf De Jonge. |
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| Prince Viktor Nikolaevich Gagarin, by Arturo Noci, 1907. |
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| Portrait of a man (possible self-portrait), by Gilbert Stuart, circa 1782-9. |
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| Portrait of a Grand Vizier of the Ottoman Empire (possibly Hekimoğlu Ali Pasha), by Jean-Étienne Liotard, circa 1738-43. |
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| Jan Bernd Schaep, by Jurgen Ovens, circa 1650s. |
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| Bela Lugosi, by Geza Kende, circa 1932. |
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| Self-portrait, by Cedric Morris (later Sir Cedric Lockwood Morris, 9th Baronet), circa 1930. |
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| Unknown, circa 1900-1920. |
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| "The Violin Student, Paris", by Stephen Seymour Thomas, 1891. |
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| Godart Alexander Gerard Philip, Baron van der Capellen, by Cornelis Kruseman, circa 1816-20. |
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| Frederick Douglass, 1848. |
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| Portrait of a young man in a black suit, by Eduard Ritter, 1835. |
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| Ernest Lee Major, by Samuel Burtis Baker, 1910. |
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| Portrait of a young man, by François-Hubert Drouais, 1772. |
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| Unknown, circa 1950s-early 60s. |
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| Duke Ernst II of Saxe-Coburg and Gotha on his deathbed, unknown painter, circa 1893. |
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| Thomas Pope, later 3rd Earl of Downe, by William Larkin, circa 1615. |
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| "Enrico" (?), by Arturo Noci, circa 1910-25. (I've been unable to find out more information on this portrait.) |
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| "El marino Sánchez", Federico de Madrazo y Kuntz, 1843. |
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| "Young Bacchus", by Sergei Solomko, 1884. |
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| Adolfo Best Maugard, by Diego Rivera, 1913. |
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| Lew Alcindor (later Kareem Abdul-Jabbar), by Richard Avedon, 1963. |
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| Carlo IV Borromeo Arese, unknown Lombard painter, circa 1675. |
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| Young man in a blue jacket, by Louis-Lié Périn-Salbreux, circa 1790. (Miniature.) |
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| Self-portrait in a red coat, by George Romney, circa 1760. |
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| German soldier, circa 1940-45. Courtesy Ralf De Jonge. |
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| Portrait of a young man (possibly Alessandro de'Medici), by Jacopo Pontormo, circa 1526. |
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| Carl, 3rd Prince of Leiningen, by Louis Ami Arlaud-Jurine, 1821. (Miniature.) |
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| Portrait of a young man, by Jacob Ferdinand Voet, circa 1670s. |
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| Maurice Chevalier, by Edward Steichen, 1929. |
