Untitled (Red); from London Series I (E.&B.90, B.62), 1971 Screenprint in red on J.B. Green mould-made paper, signed in pencil and inscribed 'For Ron' (a proof aside from the edition of 150), with the blindstamp of the artist, published by Marlborough Graphics, Inc., New York, printed by Christ Prater, Kelpra Studio, London, with full margins, framed. 36 x 24in (91.4 x 60.9cm) sheet 41 1/4 x 28 1/8in (104.7 x 71.3cm)