| Ref No | WIA GC/17842 |
| Title | Warburg, Aby to Nippen, Hans 26/04/1926 |
| Writer | Warburg, Aby |
| Recipient | Nippen, Hans |
| Place2 | Cologne, Vogteistrasse 16 |
| Date | 26/04/1926 |
| Format | typescript |
| Contents | Paul Ruben's birthday went well; he cannot help him with organising the congress as he will be absent from Hamburg in June; refers him to his friend Karl Albrecht who will be able to help him with the congress preparations |
Show related Persons records.
Persons
| Code | PersonName | Dates |
| DS/UK/9 | Ruben; Paul (1866-1943) | 1866-1943 |
| DS/UK/1313 | Nippen; Johannes; Dr. med. | |