Sol LeWitt (American, 1928-2007). Silkscreen on paper titled “Grids and Color Plate #40” depicting a grid of lime green, half of the grids filled in blue and half in black, ca. 1979. Pencil signed and dated “8/10-34 (August 10, 1934)” along the lower right. Height: 16 in x width: 30 in.