On the side wall of the building is the lettering “RESTAURANT”, which consists of single letters. The device made of presumably yellow or green glowing tubes is out of order. Most likely, this is only a part of the original lettering, because the bar for the letters is longer and has holes.
Attempts to put the installation back into operation have so far failed due to the need to procure an appropriate transformer, as the existing one can no longer be repaired. (Info from company NEON ELAN)