WIA GC/1906/110 | Bruck, Hermann to Warburg, Aby 02/02/1906 | thanks him for an essay |
WIA GC/1910/92 | Bruck, Hermann to Warburg, Aby 28/01/1910 | a group of artists have decided to publish a portfolio of their work; invites subscriptions... |
WIA GC/1910/93 | Bruck, Hermann to Warburg, Aby 31/07/1910 | thanks him for a copy of 'Die Wandbilder'; he liked Warburg's article, Warburg skilfully avoided... |
WIA GC/1912/170 | Hamburg-Amerika Linie to Bruck, Hermann 11/11/1912 | official letter of commissioning, based on the discussion with Warburg, for H. Bruck to paint a... |
WIA GC/1912/171 | Warburg, Aby to Bruck, Hermann 22/12/1912 | suggests that Bruck should ask J.D. Heymann to collect the painting if and when it is finished |