It took some time to figure out, but now i am sertain. I have got a prototype Hook.
The easiest way to recognise a Prototype is by the spinning disc behind the backglass. I made a movie of it :
Problem is that currently the machine runs software version 4.08 and that version doesn't make the disc spin
According to Tim Seckel the designer thare ware made betweer 25 and 100 prototypes. Does anybody knows someone with a prototype and the original software version? It would be fun to have the disc doing what it should do.