Otto Piene

Galerie Ad Libitum, Antwerp
Galerie Ursula Lichter, Frankfurt am Main
Acquired directly from the above by the present owner in 1968

Antwerp, Galerie Ad Libitum, Die vier Elemente, 1963
Frankfurt am Main, Galerie Ursula Lichter, Piene, 1968
Cologne, Kölnischer Kunstverein, Josef-Haubrich-Forum, Otto Piene, 1973-74, p. 111, illustrated
Frankfurt am Main, Städtische Galerie im Städelschen Kunstinstitut, Das Städel zeigt: Beispiele aus der Sammlung Lenz, Kronberg,1974-75, n.p., no. 34, illustrated
Salzburg, Museum Carolino Augusteum, Bilder und Objekte aus der Sammlung Lenz Schönberg. Eine europäische Bewegung, 1985
Barcelona, Fundacío Caixa de Barcelona; Madrid, Fundacío Juan March, Zero, un Movimiento Europeo: Coleccíon Lenz Schönberg, 1988
Moscow, Zentrales Künstlerhaus, Sammlung Lenz Schönberg. Eine europäische Bewegung in der bildenden Kunst von 1958 bis heute, 1989, p. 172, illustrated in colour
Innsbruck, Kunstbrücke, Raiffeisen-Landesbank, ZERO. Die europäische Vision - 1958 bis heute. Sammlung Lenz Schönberg, 2003, p. 57, illustrated
Zagreb, Museum für zeitgenössische Kunst, ZERO. Die europäische Vision - 1958 bis heute. Sammlung Lenz Schönberg, 2004, p. 109, illustrated
Salzburg, Museum der Moderne, ZERO. Künstler einer europäischen Bewegung. Sammlung Lenz Schönberg 1956-2006, 2006, p. 125, illustrated in colour

'Kolekcja Lenz Schönberg: Lenz Schönberg Collection; Art & Business visits Munich and Tirol', in: Art & Business, The International Magazine for the Art Market 1-2, 1992, pp. 4-11, illustrated
Bożena Kowalska, 'Kolekcja Gerharda Lenza: Gerhard Lenz's Collection', in: Projekt: Sztuka wazualna i projektowanie visual art & design 195, June 1990, pp. 7-11, illustrated
'Zero: Die europäische Vision - 1958 bis heute; Sammlung Lenz Schönberg', in: Vernissage: Das Magazin für aktuelles Ausstellungsgeschehen 23, No. 223, April 2003, pp. 22-25, illustrated
'Spirit des Neubeginns', in: Econova: Wirtschaftsmagazin, May-June 2003, p. 89, illustrated
Anna and Gerhard Lenz with Ulrike Bleicker-Honisch, Epoche Zero. Sammlung Lenz Schönberg. Leben in Kunst, Vol. I, Ostfildern 2009, p. 108, no. PI-02, illustrated in colour

Colour: The colours in the catalogue illustration are fairly accurate although the overall tonality of the white background is warmer in the original. There are two spots of charcoal towards the upper left edge and another towards the upper right corner that are inherent to the artist's method but not visible in the catalogue illustration. Condition: This work is in very good condition. Close inspection reveals a very minor and thin diagonal rub mark to the lower left of the black ring. No restoration is apparent under ultra-violet light.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."