WIA GC/10606 | Warburg, Aby to Warburg, Moritz 16/04/1907 | |
WIA GC/10910 | Warburg, Aby to Warburg, Max 11/08/1908 | on a discussion with B. [Bendixen?] re [Felix] von Eckardt; von Eckardt was not antisemitic, his... |
WIA GC/11300 | Warburg, Aby to Ballin, Albert 20/11/1910 | recommends a young man, Wilhelm Burg, who is looking for work; he is a sailor and joined the... |
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/11335 | Warburg, Aby to Warburg, Max 20/03/1911 | on Lichtwark; on the amount of an official fund; complains that his brother does not keep him... |