WIA FC/1910/4/11 | Warburg, Mary to Warburg, Aby 04/04/1910 | she is working on Anna's bust [Anna Warburg], but does not make any progress; Mary requires a few... |
WIA FC/1910/4/14 | Warburg, Aby to Warburg, Mary 06/04/1910 | the letters take a long time; advises her to continue with her bust of Anna [Warburg], Anna needs... |
WIA FC/1910/4/5 | Warburg, Mary to Warburg, Aby 01/04/1910 | hopes that he had a good trip to Venice; on the work in the house, books and tables have been... |
WIA FC/1911/11/6 | Warburg, Aby to M. M. Warburg & Co. 19/12/1911 | instruction to pay invoices for Glogowski & Co in Hamburg, Eduard Ritter in Hamburg, Amsler... |
WIA FC/1927/16/26 | Warburg, Aby to Warburg, Max 17/06/1927 | on the price of the heliogravure; Amsler & Ruthardt informed him that it is out of print... |