| Ref No | WIA GC/2149 |
| Title | Helm, Karl to Warburg, Aby 22/08/1907 |
| Writer | Helm, Karl |
| Place1 | Heligoland |
| Recipient | Warburg, Aby |
| Place2 | Hamburg |
| Date | 22/08/1907 |
| Format | manuscript, postcard |
| Contents | greetings |
Show related Persons records.
Persons
| Code | PersonName | Dates |
| DS/UK/788 | Helm; Karl Hermann Georg (19/05/1871-09/09/1960); Prof. Dr. | 19/05/1871-09/09/1960 |