WIA FC/1905/7/102 | Warburg, Aby to Warburg, Mary 15/08/1905 | thanks her for photographs of their children; she showed them to Mr. [Henri] and Mrs. Hymans... |
WIA FC/1905/7/103 | Warburg, Aby to Warburg, Mary 15/08/1905 | he carries on working in Bibliothèque Royale and might travel to Luttich, but only if [Maurice... |
WIA GC/1896/35 | Hymans, Henri to Warburg, Aby 30/07/1896 | thanks him for papers and articles sent from time to time to Hymans; is interested in Warburg's... |
WIA GC/1904/136 | Friedländer, Max J. to Warburg, Aby 04/01/1904 | he has not heard of or seen a catalogue of the [Gustav?] Mayer collection and advises Warburg to... |
WIA GC/1904/177 | Hymans, Henri to Warburg, Aby 09/02/1904 | replies to enquiries about book holdings in the Royal Library |