WIA FC/1913/13/20 | Warburg, Max to Warburg, Aby 29/09/1913 | forwards a paper by professor Eduard Spranger [no longer enclosed] |
WIA FC/1913/7/34 | Warburg, Aby to Warburg, Mary 29/09/1913 | apologizes for delay in correspondence; hopes that [Paul] Sudeck is doing well after his... |
WIA FC/1927/12/2 | Warburg, Frede to Warburg, Mary 27/01/1927 | describes her room, she does like not the décor, the busts of Goethe and Schiller etc; likes her... |
WIA GC/1925/962 | Muckle, Friedrich to Warburg, Aby 01/02/1925 | forwards his book 'Geist der jüdischen Kultur und das Abendland'; was very happy meeting Warburg... |