WIA FC/1900/6/45 | Warburg, Aby to Warburg, Mary 13/10/1900 | sends birthday greetings; he will celebrate Mary's birthday together with Erich von Hornbostel... |
WIA FC/1900/7/59 | Warburg, Mary to Warburg, Charlotte 09/10/1900 | thanks her for her good wishes on the occasion of their wedding anniversary; it is the first time... |
WIA FC/1900/7/63 | Warburg, Mary to Warburg, Moritz 12/10/1900 | sends greetings; Mary and Marietta are fine; Mary is looking for a villa in San Domenico; she... |
WIA FC/1900/7/71 | Warburg, Charlotte to Warburg, Aby and Warburg, Mary 02/11/1900 | hopes that the move to the new apartment went well; congratulates them on the new position of... |
WIA FC/1900/7/82 | Warburg, Mary to Warburg, Charlotte 10/12/1900 | thanks her for letter to Warburg; he himself cannot reply as his eyes are hurting him; otherwise... |