WIA GC/1907/480 | Warburg, Aby to Lenel, Walter 17/10/1907 | replies to Lenel's criticism of Warburg's style; Warburg understand that his method of 'polyphony... |
WIA GC/1907/760 | Warburg, Aby to Warburg, Max 13/10/1907 | he has found a solution, he has rented a room in Dr. Sillem's house (49 Heilwigstrasse) as studio... |
WIA GC/1907/763 | Warburg, Aby to Weber, Max 09/10/1907 | Professor [Paul] Hensel encouraged him to send a copy of his Sassetti article to Weber; forwards... |
WIA GC/1907/764 | Weber, Max to Warburg, Aby 10/10/1907 | thanks him for the Sassetti article; Sassetti is not like a Calvinist, he does not stand on firm... |
WIA GC/1911/849 | Weber, Max to Warburg, Aby 12/07/1911 | supplies the information that an article, requested by Warburg, was published in the 'Frankfurter... |