WIA GC/10256 | Warburg, Aby to Hamburgischer Correspondent 01/10/1905 | a letter to the editor of the 'Hamburgische Correspondent' on the case of a Russian patient who... |
WIA GC/10366 | Warburg, Aby to Bulle, Oskar 21/06/1906 | reports on the meeting re weekly or weekly supplement; the supplement is dependent on the re... |
WIA GC/10417 | Warburg, Aby to Bulle, Oskar 26/08/1906 | he forwarded Bulle's research request to the Institute in Florence; there are no news yet on the... |
WIA GC/10721 | Warburg, Aby to Hallier, Eduard 26/10/1907 | requests a copy of their catalogue 'Museographie'; encourages them to send a review copy to the... |
WIA GC/11242 | Warburg, Aby to Eckardt, Felix von 09/06/1910 | returns the letter by [Ludwig] Leiser, forwarded by Müller-Rastatt on the request of von Eckardt... |