CVL500208:
Curved Plane/Figure VII (Study), 1995 (acrylic & graphite on three canvases on stretchers joined to form a lunette)
, Mangold, Robert (b.1937) / Bridgeman Images
HST1074788:
A Quarter Circle Not Totally within a Rectangle and a Square, 1976 (acrylic & crayon on canvas), Mangold, Robert (b.1937) / Bridgeman Images