Gerstner (Karl) - Color Sound 7. Intro Version. Text: Prof. Dr Max Lüscher.

Karl Gerstner. Color Sound 7. Intro Version. Text: Prof. Dr Max Luscher. 4to, 26cm, 12 cutaway leaves + pp.[16], Galerie Denise Rene Hans Mayer, Dusseldorf, Mai-Juni 1972.

Text in German and English. "Color sound" on yellow-ochre, full-yellow, salmon-pink and lilac papers. Acetate covers titled in black. A fine copy.

A T-shaped die-cut sequence of leaves with shades of colour from violet to orange yellow. The first sheet is signed and dated by Karl Gerstner (26.v.72).