| Title page of the German edition (1890) of the Manifesto of the Communist Party | 55 |
| First page of F. Engels' manuscript A Critique of the Draft Social-Democratic Programme of 1891 | 221 |
| Half-title of the English edition of Socialism: Utopian and Scientific presented by Engels to F. A. Sorge | 279 |
| Title page of the English edition of Socialism: Utopian and Scientific | 280 |
| Title page of the English edition of The Condition of the Working-Class in England in 1844 | 309 |
| Reverse of the title page of The Condition of the Working-Class in England in 1844 presented by Engels to Eleanor Marx-Aveling | 310 |
| List of K. Marx's works drawn up by F. Engels | 333 |
| List of F. Engels' works drawn up by himself | 337 |
| List of F. Engels' works drawn up by himself (continued) | 338 |
| Title page of the Italian edition of the Manifesto of the Communist Party presented to Engels by F. Turati | 363 |
| Title page of the pamphlet Can Europe Disarm? | 369 |
| Cover of Internationales aus dem " Volksstaat" (1871-75) | 415 |
| Title page of Internationales aus dem "Volksstaat" (1871-75) presented by Engels to Dr. Rudolf Meyer | 416 |