Otto Boll, Untitled, 1989, aluminium, steel, paint, 2 parts: 200 x 150 x 100 cm, 78 3/4 x 59 1/8 x 39 3/8 ins, 100 x 150 x 200 cm, 39 3/8 x 59 1/8 x 78 3/4 ins. Photo: Robert Glowacki. © Otto Boll. Courtesy Axel Vervoordt Gallery, Belgium & Stuart Shave/Modern Art, London

1 June 2018 By