WIA GC/13838 | Warburg, Siegmund George to Warburg, Aby 06/10/1922 | congratulates him and Mary Warburg on their silver wedding; the problems which Warbjrg studied... |
WIA GC/18395 | Warburg, Siegmund George to Warburg, Aby 29/07/1926 | sends belated birthday greetings |
WIA GC/19465 | Warburg, Aby to Saxl, Fritz 21/04/1927 | Saxl should not become disheartened; Warburg is sure that Saxl will find material interesting to... |
WIA GC/19577 | Warburg, Siegmund George to Saxl, Fritz 21/04/1927 | following a telephon conversation with Warburg he has written to Mrs. Ignacio Bauer to tell her... |
WIA GC/19578 | Warburg, Siegmund George to Warburg, Aby 23/04/1927 | thanks him for a copy of 'Orientalisierende Astrologie' |