| Ref No | WIA GC/1905/140 |
| Title | Federer-Köster, Anna to Warburg, Aby 02/10/1905 |
| Writer | Federer-Köster, Anna |
| Place1 | [Hamburg], Röhrendamm 248 |
| Recipient | Warburg, Aby |
| Date | 02/10/1905 |
| Format | manuscript, card |
| Contents | thanks him for his invitations but sends apologies |
Show related Persons records.
Persons
| Code | PersonName | Dates |
| DS/UK/445 | Federer-Köster; Anna, née Köster | |
| DS/UK/2245 | Warburg; Aby Moritz (13/06/1866-26/10/1929); Professor, Dr. | 13/06/1866-26/10/1929 |