WIA GC/1896/24 | Friedländer, Max J. to Warburg, Aby 12/06/1896 | thanks for letter of safe return to Europe; is sorry that Warburg's old affliction, hayfever... |
WIA GC/1900/91 | Warburg, Aby to Thieme, Ulrich 29/04/1900 | a letter with the enclosure mentioned by Artur Weese, an article about Ernst Steinmann's review... |
WIA GC/1904/10 | Becker, Felix to Warburg, Aby 29/02/1904 | the authors of the projected 'Künsterlexikon', Ulrich Thieme and Felix Becker, have to cover a... |
WIA GC/1904/314 | Thieme, Ulrich to Warburg, Aby 09/04/1904 | thanks Warburg for his promise to write an entry on Botticelli in the 'Künstlerlexikon... |
WIA GC/1906/717 | Thieme, Ulrich to Warburg, Aby 03/02/1906 | Warburg should be the only author for the entry on Botticelli; on the style and length of the... |