The Protop 'thorn' attached to a Treiber-Frachter, ending in an engine.
| German | Protopdorn |
| English | Protopdorn |
| Category | technology |
The Protop 'thorn' attached to a Treiber-Frachter, ending in an engine.
| German | Protopdorn |
| English | Protopdorn |
| Category | technology |