Issue link: http://read.uberflip.com/i/504747
18 1971 (Two squares and very green), 1971 Signed, dated and titled verso 'Nicholson, 1971, (two squares & very green)' Oil on carved masonite 21 5/8 x 13 3/8 in, 55 x 34 cm Provenance Marlborough Gallery, New York
