WIA GC/11325 | Warburg, Aby to Ballin, Albert 03/03/1911 | thanks him for the interest shown to his protégé; informs him of his trip to Rome in congress... |
WIA GC/11647 | Warburg, Aby to Warburg, Max 03/10/1912 | informs him that Lichtwark will not attend the congress; his application to the Senate was so... |
WIA GC/11775 | Warburg, Aby to Haseloff, Arthur [May 1912] | on the textual changes necessary in a congress circular; on the timetable of lectures; mentions... |
WIA GC/11796 | Warburg, Aby to Eckardt, Felix von 26/09/1912 | requests von Eckardt to hand Fürst Bülow the programme of the congress; Bülow sent his... |
WIA GC/12126 | Warburg, Aby to Bülow, Bernhard Fürst von 22/11/1914 | the editors of 'Rivista Illustrata' would be very happy if Fürst Bülow could publicize 'Rivista' |