| Signature mark | NL 174/1823 |
|---|---|
| Subject | Brief |
| Author |
Krupp, Friedrich Alfred
|
| Recipient |
Mach, Ernst
|
| Title | Krupp, Friedrich Alfred an Mach, Ernst |
| Places | Essen |
| Duration | 11.05.1889 |
| Scope | 1 S. hs. |
| Rights notice | CC BY-SA 4.0 |