LifestyleArtist Gotthard GraubnerTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoLifestyle10/23/2013October 23, 2013Gotthard Graubner passed away earlier this year. Now two museums in Düsseldorf are exhibiting his works in a special tribute.https://p.dw.com/p/1A5GcAdvertisement