Well - I agree - it's certainly not worth a lot, but strange, and I like strange things: I always want to find out more about them. So it's strange and interesting - but I never guessed it would be THAT interesting! At least I got a lively discussion started
As Glen and Lustrousstone point out correctly: the seller is registered in the UK (and his description is in English), and the link got the CH bit on it (plus some basic ebay text in German) because I enter ebay via their Swiss web page. This doesn't imply anything about the origin of the item, of course.
I'll post a more detailed description, and possibly a couple of pictures, once I got the item - and will always appreciate any comment on it.
Thanks to all - Wuff