WIA FC/1907/9/4 | Warburg, Max to Warburg, Aby 30/03/1907 | is pleased that Warburg is feeling well in Berlin and can work again; he has ordered the two... |
WIA FC/1907/9/5 | Warburg, Max to Warburg, Aby 06/04/1907 | he is looking for a new secretary in the Chamber of Commerce; Dr. [Wilhelm ?] Kiesselbach is fine... |
WIA FC/1907/9/6 | Warburg, Max to Warburg, Aby 08/04/1907 | thanks him for Warburg's comment on [Alfred] Weber; he is not suitable for Hamburg, [Werner] von... |
WIA FC/1907/9/9 | Warburg, Max to Warburg, Aby 23/05/1907 | forwards an assessment [not extant] by [Max von] Schinckel on [Alfred] Weber, which is more... |
WIA FC/1915/2/9 | Hertz, Wilhelm to Warburg, Aby 26/12/1915 | 'Marieke' [Mary Warburg] has written a lovely letter to Wilhelm for Christmas; thanks her and... |