WIA GC/10131 | Warburg, Aby to Hertz, Mary 06/06/1897 | hopes that John [Johann Nicolaus Hertz] has informed her that one of Warburg's letters to John... |
WIA GC/10445 | Warburg, Aby to Silvy, H. 30/09/1906 | thanks him for supplying him with a very good photograph of the niello; it helped him to find the... |
WIA GC/10907 | Warburg, Aby to Rothschild, Edmond de 03/08/1908 | thanks him for a copy of Rothschild's commemorative speech on [Henri] Bouchot |
WIA GC/2397 | Silvy, H. to Warburg, Aby 28/09/1906 | forwards a photograph of a niello belonging to Baron Edmond de Rothschild |
WIA GC/26306 | Warburg, Aby to Warburg, Charlotte 05/06/1897 | repeats that he will not agree to be forced to accept anything against his will; nobody wants to... |