Otto Boll, Untitled, 2015, steel, paint, 300 x 60 x 6.5 cm, 118 1/8 x 23 5/8 x 2 1/2 ins. Photo: Robert Glowacki. © Otto Boll. Courtesy Axel Vervoordt Gallery, Belgium & Stuart Shave/Modern Art, London

1 June 2018 By