Then, in the second gallery, anew world of possibilities seems to be opening up, with some of Sir Anthony's earliest abstract sculptures from the 1960s, open-work forms in painted steel and aluminium, all resting on the ground.
What caught my eye this month is "The Sisters" (below), a hypnotically luminous 1991-93 abstract work by Brice Marden, one of America's leading artists and the subject of anew book, "Brice Marden: Phaidon Focus" (Phaidon).