Hello @ all!
The second set looks interesting and unusual. Maybe it could be a prototype
The seller is looking for technical details and schematics for this set.
If you are talking about the price of the pilot set, have a look at this tube:
http://www.ebay.de/itm/150679210585
Greetings Josef
PS: Es wird jede Minute ein Idiot geboren- Ich glaube Sie haben recht!