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pre view. 02 19 8 Coloured Window The examination of colour, colour con- trast and form in space, which has been characteristic of Imi Knoebel's work since the mid-1970s, also comes to the fore in the 2020 creation ‘Basel Fenster 5 ED’ offered here. The work refers to a window installation that Knoebel con- ceived and realised for the Volkshaus Basel. Imi Knoebel (geb. 1940). Basel Fenster 5 ED. 2020. Acrylic on plastic film. 5/7. 97 × 157 cm. Estimate : CHF 50 000/80 000 © 2024, ProLitteris, Zurich 7 A Nana for flowers From 1965 onwards, Niki de Saint Phal- le created her brightly coloured Nanas, which have become her unmistakable trademark. With these voluptuous figures, the artist celebrated the female body while also addressing social issues such as self-confidence and body positivity. The Nanas are not only works of art, but also an expression of strength and independence. Niki de Saint Phalle (1930–2002). Nana Vase. 1984. Painted polyester. 89/150. 47 × 30 × 30 cm. Estimate : CHF 15 000/20 000 © Niki Charitable Art Foundation / 2024, ProLitteris, Zurich 5 Three parts, one body By using identical cylinders, Max Bill em- phasises the geometric simplicity and aesthetic purity of his art object. The three parts, which are not visibly con- nected to each other, remain stable on their own, although their arrangement in space seems at first glance to contradict the laws of physics. Max Bill (1908–1994). Einheit aus drei gleichen Zylindern. 1966. Gilt brass. III/IVg. 24 × 45 × 32 cm. Estimate: CHF 12 000/18 000 © 2024, ProLitteris, Zurich 6 The curtain falls This work served as preparation for the ‘Valley Curtain’ project by Christo & Jeanne-Claude. It was finally real- ised on 10 August 1972, after more than two years of planning. The duo had a 13,200-square-metre textile curtain stretched across Rifle Gorge in Colorado, marking the beginning of numerous other projects in America. Christo (1935–2002). Valley Curtain (Project for Colorado/Rifle). 1971. Collage. 70.7 × 55.7 cm. Estimate: CHF 20 000/30 000 © 2024, ProLitteris, Zurich 5 6 7 8