| Signature mark | NL 174/3228 |
|---|---|
| Subject | Brief |
| Author |
Wirtinger, Wilhelm
|
| Recipient |
Mach, Ernst
|
| Title | Wirtinger, Wilhelm an Mach, Ernst |
| Places | Ybbs a.d. Donau |
| Duration | 28.07.1910 |
| Scope | 1 S. hs. |
| Rights notice | CC BY-SA 4.0 |