WIA GC/11867 | Petersen, G. to Warburg, Aby 02/09/1920 | refers to Warburg's Last Will, dated 14/09/1917 and kept in the safe of his office; the codicil... |
WIA GC/11868 | Petersen, G. to Warburg, Aby 20/09/1920 | forwards draft of new Last Will; he discussed it with Warburg's brother-in-law, Wilhelm Hertz... |
WIA GC/11983 | Warburg, Aby to Petersen, Carl , Nottebohm, H and Petersen, G. 14/12/1913 | on the court case against Schaul; supplies figures |
WIA GC/12479 | Warburg, Aby: addition to his Last Will of 19/10/1918 | detailed description of his library; instructions for transfer to the Museum für Völkerkunde... |
WIA GC/167 | Warburg, Aby to Wrochem, Albrecht von 26/12/1917 | informs him that he has advanced the sum of Mark 1,600 for the purchase of the [Robert] Münzel... |