1970. Joseph Beuys with his children at Edinburgh College of Art.

August 1970. Joseph Beuys with his children Wenzel (left) and Jessyka at Edinburgh College of Art, on the scaffolding for Keith Critchlow and Alan Hacker's 'musical environment' Sound in Space (25-29 August) which was presented contemporaneously with Strategy: Get Arts by the RDG for the Edinburgh Festival Fringe. Photograph by George Oliver.