WIA FC/1906/12/13 | Warburg, Max to Warburg, Aby 31/03/1906 | encloses a letter to [Joseph George] Rosengarten [in Philadelphia]; Max has begun the letter... |
WIA FC/1906/12/27 | Rosengarten, Joseph George to M. M. Warburg & Co. 28/11/1906 | as requested by Warburg he sends draft for mark 1,000 as his subscription in memory of his mother... |
WIA FC/1906/12/28 | Hamlet, Max to Warburg, Aby 08/12/1906 | forwards the copy of Joseph George Rosengarten's letter of 28/11/1906 |
WIA FC/1906/13/1 | Warburg, Paul to Warburg, Aby and Warburg, Mary 27/01/1906 | since having returned from Whiteplains the children have been ill; Wilhelm [Hertz] told Paul that... |
WIA GC/1902/347 | Rosengarten, Joseph George to Warburg, Aby 11/06/1902 | thanks him very much for Warburg's book 'Bildniskunst'; he ordered a copy to present it to the... |