Issue April 1966 Volume 171 Number 876. Edited by Peter Townsend this issue is devoted to Naum Gabo and Constructivism. Other articles are by Jasia Reichardt on 'The Ideal Book on Cubism' Dore Ashton 'The Artist as dissenter@: New York Commentary. VG in original cover with Naum Gabo Linear construction No 2, 1953 b/w illustration.