Imi Knoebel (Dessau 1940 – lives in Düsseldorf). Friend. 1988 Installation: Galvanized sheet metal, steel, acrylics on wood. 300 × 266,5 × 40 cm (118 ⅛ × 104 ⅞ × 15 ¾ in.). On the reverse of the white wooden square signed and dated with brush in light blue, green and pink: imi 88. [3203] Provenance: Galerie Rudolf Zwirner, Cologne / Akira Ikeda Gallery, Japan / Private Collection, Japan / Private Collection, Germany Exhibition: Bilder. Cologne, Galerie Rudolf Zwirner, 1988 / Imi Knoebel: Chaos mit Ordnung. Utsunomiya (Japan), Tochigi Prefectural Museum of Fine Arts, 1994, ill. p. 17 We would like to thank Christian Lethert, Galerie Christian Lethert, Cologne, for kindly providing additional information