I discoverd your trackable during the event: https://coord.info/GC7FT22 CET2018 The opening -'t giet löss or the event https://coord.info/GC78PHG CET 2018 The best of Twente. At one of the events or at a car near one of the events.
It is possible I log one tb twice, it was impossible to remember the numbers I allready have seen.