WURZBURG.- On the occasion of the 80th birthday of Heinz Mack, the Kulturspeicher museum in Wurzburg is showing approximately 80 graphic works by the artist from all of his creative periods. The range of the exhibits, which include large-format works, ranges from pen and ink drawings through to frottages and colored pastel crayon drawings. Most works are in the artist’s own possession and are presented to the public for the first time. As a co-founder of the artist group ZERO, which he initiated jointly with Otto Piene in 1958 and was later joined by Gunther Uecker, Heinz Mack gained worldwide acclaim. Jointly with Otto Piene and Gunther Uecker he created the ZERO light room (Hommage a Fontana) for documenta III in Kassel in 1964. This installation was later acquired by Museum Kunstpalast and was shown as part of the reopening and new presentation of the museum’s collection in an exhibition that began in May in parallel to the exhibition Mack: The language of my hand held th