(There) Ahead John FIRTH-SMITH Strut John FIRTH-SMITH Painting 3 Paul BOSTON Untitled Paul PARTOS Etude Friedrich VORDEMBERGE-GILDEWART Black with curves Antoni TÀPIES Erosion (Staircase negative) Analia SABAN Die Fahne Hoch Frank STELLA Erosion (Staircase) #2 Analia SABAN Untitled Harvey QUAYTMAN Relocation John FIRTH-SMITH Four Basic kinds of Straight Lines Sol LEWITT Abstract with Aboriginal motif James CANT The Location of Lines Sol LEWITT Curved forms Barbara HEPWORTH Yellow premiss Ian BURN Olympia Godfrey MILLER Crimson Stanislaus OSTOJA-KOTKOWSKI Untitled green Paul PARTOS Cadenza Len CRAWFORD Enclosed spheres Stanislaus OSTOJA-KOTKOWSKI Untitled (The black window) Robert JACKS Zena Michael JOHNSON Arrival Sean SCULLY Thru a-z+ Louise NEVELSON Composition Ludwig HIRSCHFELD MACK Terrain drawing #3 Peter ROBINSON Kind-hearted kitchen garden III Robert ROONEY Superknit 1 Robert ROONEY Hanoi red Lesley DUMBRELL