WIA GC/11310 | Warburg, Aby to Hadeln, Detlev von 22/02/1911 | he is unhappy that his article will be published only in the July issue; insists on what he... |
WIA GC/11320 | Warburg, Aby to Hadeln, Detlev von 24/02/1911 | explains the delay in completing the article on the Hausbuchmeister; on Feb. 5th, he thought he... |
WIA GC/11323 | Warburg, Aby to Friedländer, Max J. 03/03/1911 | D. von Hadeln will have sent him proofs by now [Hausbuchmeister]; informs him that he found a... |
WIA GC/11367 | Warburg, Aby to Hadeln, Detlev von 20/05/1911 | on Heinrich Brockhaus's invitation to Warburg to give lectures in the Institute in Florence; a... |
WIA GC/11526 | Warburg, Aby to Bode, Wilhelm 12/03/1912 | replies to Bode's letter re Kunsthistorisches Institut in Florenz; Warburg is not interested to... |