| Signature mark | NL 174/0667 |
|---|---|
| Subject | Brief |
| Author |
Becke, Friedrich
|
| Recipient |
Mach, Ernst
|
| Title | Becke, Friedrich an Mach, Ernst |
| Places | Wien |
| Duration | 23.10.1911 |
| Scope | 1 S. ms. |
| Rights notice | CC BY-SA 4.0 |