| Ref No | WIA GC/1905/179 |
| Title | Geffcken, Johannes to Warburg, Aby 26/02/1905 |
| Writer | Geffcken, Johannes |
| Place1 | Hamburg |
| Recipient | Warburg, Aby |
| Date | 26/02/1905 |
| Format | manuscript, card; with annotation by Warburg |
| Contents | asks Warburg for an appointment |
Show related Persons records.
Persons
| Code | PersonName | Dates |
| DS/UK/765 | Geffcken; [Karl Heinrich] Johannes (02/05/1861-11/06/1935); Prof. Dr. | 02/05/1861-11/06/1935 |
| DS/UK/2245 | Warburg; Aby Moritz (13/06/1866-26/10/1929); Professor, Dr. | 13/06/1866-26/10/1929 |