| Marx To Dagoben Oppenheim. August 25 1841 |
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Marx To Ludwig Feuerbach, August 11, 1844 |
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Engels to Marx in Paris. Nov 19 1844 |
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Marx to Pavel Vasilyevich Annenkov. Dec 28 1846 |
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Engels to Marx. 3 December 1851 |
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Engels to Joseph Weydemeyer. 12 April 1853 |
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Marx to Ferdinand Lassalle. 8 November 1855 |
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Marx to Engels. 13 November 1857 |
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Marx to Engels. 16 January 1858 |
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Marx to Engels. 1 February 1858 |
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Marx to Ferdinand Lassalle. 22 February 1858 |
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Marx to Ferdinand Lassalle. 31 May 1858 |
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Engels to Marx. 14 July 1858 |
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Marx to Engels. 9 December 1861 |
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Marx to Engels. 18 June 1862 |
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Engels to Friedrich Albert Lange. March 29 1865 |
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Marx to Engels. 7 July 1866 |
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Engels to Marx. 16 June 1867 |
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Marx to Engels. 22 June 1867 |
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Engels to Marx. 24 June 1867 |
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Marx to Engels. 27 June 1867 |
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Marx to Engels. 7 November 1867 |
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Engels to Marx 7 January 1868 |
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Marx to Kugelmann. 6 March 1868 |
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Marx to Engels. 25 March 1868 |
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Engels to Marx. 6 November 1868 |
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Marx to Engels. 15 April 1869 |
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Marx to Engels. April 14 1870 |
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Marx to Kugelmann. 27 June 1870 |
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Engels to Marx. May 30 1873 |
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Engels to Bebel. June 20 1873 |
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Engels to Marx. May 28 1876 |
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Engels to Eduard Bernstein. Nov 2-3, 1882 |
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Engels to Zasulich. April 23 1885 |
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Engels to Conrad Schmidt in Berlin. August 5 1890 |
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Engels to Otto Von Bönigk in Breslau. August 21 1890 |
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Engels to Joseph Bloch in Königsberg. September 21 1890 |
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Engels to Conrad Schmidt. October 27 1890 |
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Engels to Mehring. July 14 1893 |
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Engels to Borgius. January 25 1894 |
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Engels to Conrad Schmidt. March 12 1895 |