Raster. 1968.
Pastel.
Bottom center signed and date,d as well as with the inscription "Mack 68". On wove paper. 75 x 54 cm (29.5 x 21.2 in), size of sheet.
[SL].
• In spite of a coloring reduced to black and white, the artist achieves an impressive spatial effect.
• Characteristic work from Mack's "ZERO" era.
• For the first time on the international auction market (source: www.artprice.com).

PROVENANCE: Private collection Northern Germany (obtained from the artist).