Helen Frankenthaler was an American abstract expressionist painter. She was a major contributor to the history of postwar American painting. Having exhibited her work for over six decades, she spanned
1978 in her New York City studio photographed by Lynn Gilbert
Mountains and Sea 1952 Oil and charcoal on unsized, unprimed canvas, 86+3⁄8 in × 117+1⁄4 in (219 cm × 298 cm) on extended loan to the National Gallery of Art, Washington, DC