All works by Helen Frankenthaler. Photograph by James Zimmerman.

All works by Helen Frankenthaler. Photograph by James Zimmerman.

All works by Helen Frankenthaler. Photograph by James Zimmerman.

All works by Helen Frankenthaler. Photograph by James Zimmerman.

All works by Helen Frankenthaler. Photograph by James Zimmerman.

All works by Helen Frankenthaler. Photograph by James Zimmerman.

All works by Helen Frankenthaler. Left to right, Over the Circle, 1961, Provincetown Window, 1963–64, The Bay, 1963, Provincetown, 1964, Summer Scene: Provincetown, 1961, The Cape, 1962. © 2018 Helen Frankenthaler Foundation, Inc./Artists Rights Society (ARS), New York.

All works by Helen Frankenthaler. Left to right, The Cape, 1962, Blue Atmosphere II, 1963, Breakwater, 1963, Cool Summer, 1962. © 2018 Helen Frankenthaler Foundation, Inc./Artists Rights Society (ARS), New York.

All works by Helen Frankenthaler. Left to right, Square Figure, 1961, Over the Circle, 1961, Provincetown Window, 1963–64. © 2018 Helen Frankenthaler Foundation, Inc./Artists Rights Society (ARS), New York.

All works by Helen Frankenthaler. Left to right, Abstract Landscape, 1951, Provincetown Series #2, 1960, Provincetown Series #3, 1960, Provincetown Series, 1960, Provincetown Series, 1960. © 2018 Helen Frankenthaler Foundation, Inc./Artists Rights Society (ARS), New York.

All works by Helen Frankenthaler. Left to right, Untitled, 1950, Female Figure Study #1, 1950, Provincetown Harbor, 1950, Provincetown Bay, 1950. © 2018 Helen Frankenthaler Foundation, Inc./Artists Rights Society (ARS), New York.

All works by Helen Frankenthaler. Left to right, Provincetown Series #2, 1960, Provincetown Series #3, 1960, Provincetown Series, 1960, Provincetown Series, 1960, Sea Picture with Black, 1959, Summer Picture, 1959, Shore Figure, 1959. © 2018 Helen Frankenthaler Foundation, Inc./Artists Rights Society (ARS), New York.