Lego OVP 4002015 Neu 2015 Employee Exclusive: Borkum Riffgrund 1 Neu, ungeöffnet This set was given to employees for the opening event of the windpark "Borkum Riffgrund 1" loctated in the North Sea on Oct-09, 2015 and also given to TLG employees as a Christmas gift in 2015.