WIA GC 1931/243 | Bing, Gertrud to Bombe, Walter 31/10/1931 | |
WIA GC 1931/244 | Bombe, Walter to Bing, Gertrud 05/11/1931 | |
WIA GC 1931/245 | Bing, Gertrud to Bombe, Walter 07/11/1931 | |
WIA GC/10297 | Warburg, Aby to Brockhaus, Heinrich 17/11/1905 | thanks him for the circular letter to members of the Central Committee of the Kunsthistorisches... |
WIA GC/10353 | Warburg, Aby to Brockhaus, Heinrich 01/06/1906 | thanks him for letters and minutes of a meeting; he has only recently returned from Karlsbad; he... |