Günther Uecker, The Yellow Picture (Das gelbe Bild), 1957–58, Nails and oil on canvas, 87 x 85 cm. Private collection © Günther Uecker. Photo: Nic Tenwiggenhorn

Pol Bury, Punctuation (Ponctuation), 1959, Wood and electric motor, diameter: 70 cm. Private collection, Brussels, courtesy Patrick Derom Gallery, Brussels © Pol Bury. Photo: Courtesy Patrick Derom Gallery, Brussels

Lucio Fontana, Concetto Spaziale, Attese, 1959, Synthetic paint on canvas, olive green, 125 x 250.8 cm. Solomon R. Guggenheim Museum, New York. Gift, Mrs. Teresita Fontana, Milan 77.2322 © 2014 Artists Rights Society (ARS)/SIAE Rome. Photo: David Heald © The Solomon R. Guggenheim Foundation, New York

Piero Manzoni, Achrome, 1961, Fiberglass, fabric, wood, paint, and acrylic glazing, 66.8 x 58.4 x 24.8 cm. Solomon R. Guggenheim Museum, New York. Gift, Manzoni Family 93.4225 © 2014 Artists Rights Society (ARS)/SIAE Rome. Photo: Ellen Labenski © The Solomon R. Guggenheim Foundation, New York

Almir Mavignier, Convex-Concave II (Konvex-Konkav II), 1962, Oil on canvas, 141 x 100 cm. Collection of the artist © Almir Mavignier. Photo: Almir Mavignier

Heinz Mack, New York, New York, 1963, Aluminum on wood, 160 x 100 x 20 cm. Private collection © Heinz Mack. Photo: Heinz Mack

Otto Piene, Venus of Willendorf (Venus von Willendorf), 1963, Oil and soot on canvas, 150 x 200 cm. Stedelijk Museum Amsterdam © Otto Piene. Photo: Courtesy Stedelijk Museum Amsterdam

Otto Piene, Light Ballet (Light Satellite) (top) and Light Ballet (Light Drum), 1969, Chrome, glass, and light bulbs, sphere diameter: 38 cm; drum height: 45.7 cm, diameter: 124.5 cm. Moeller Fine Art, New York © Otto Piene. Photo: Courtesy Moeller Fine Art, New York