WIA GC/1108 | Joachim, Hermann to Warburg, Aby 08/11/1903 | on the appeal for the Hermann Usener bust; how to get in touch with P. Ruben [Paul Ruben], Ernst... |
WIA GC/25216 | Warburg, Aby and Warburg, Moritz to Warburg, Charlotte 11/05/1887 | Warburg thanks his mother for a letter; he is well; he has 27 lecture hours per week including... |
WIA GC/25274 | Warburg, Aby to Warburg, Charlotte 24/02/1888 | thanks her for letter and money advanced; he would like to attend the festivities in Hamburg... |
WIA GC/25342 | Warburg, Aby [list of his friends] [1888] | a list of names of Warburg's friends and spoof etymologies of names: H. Nippen: president of... |
WIA GC/9735 | Ruben, Paul to Warburg, Aby 15/10/1887 | mentions Ernst Levy, Wilhelm Kiesselbach, John [Johann Nicolaus] Hertz, Johannes [Hans] Nippen... |