WIA FC/1921/20/17 | Warburg, Max to Warburg, Aby 27/06/1921 | has received his letter of 23/06/1921; Erich's letter to Aby was against instructions and Lola... |
WIA FC/1921/3/6 | Derenberg, Louise to Warburg, Aby 30/12/1921 | thanks him for a letter; she attended the lecture by Adolph Goldschmidt in the KBW the previous... |
WIA FC/1922/17/7 | Warburg, Gisela to Warburg, Aby [c. 1922] | thanks him for his note and hopes to see him soon again; she doesn't want to leave their holiday... |
WIA GC 1930/3595 | Saxl, Fritz to Warburg, Gisela 16/12/1930 | |
WIA GC/1922/83 | du Bois-Reymond, Lili to Warburg, Aby 29/05/1922 | sends greetings from Warburg's house in Hamburg; thanks him for the hospitality; is pleased to... |