| Signature mark | NL 265/0481 |
|---|---|
| Subject | Brief (1) |
| Author |
Ahlborn, C. |
| Recipient |
Ursinus, Oskar
|
| Title | Ahlborn, C. an Ursinus, Oskar |
| Contains | Entwicklung eines Muskelflugapparats |
| Places | Hamburg |
| Duration | 02.03.1936 |
| Scope | 1 Bl. hs. |
| Subject area | Fluggeräte schwerer als Luft, ohne Antrieb <740.09> |
| Rights notice | CC BY-SA 4.0 |
