Photograph of cottonwood tree artwork from the Georgia O'Keeffe exhibition at the Museum of Modern Art, 1946.

Photograph of artwork from the Georgia O'Keeffe exhibition at the Museum of Modern Art, 1946.

Installation photograph of artwork from the Georgia O'Keeffe exhibition at the Museum of Modern Art, 1946. O'Keeffe's signature is large on the wall, and two works are visible in an adjacent space.

Installation photograph of artwork from the Georgia O'Keeffe exhibition at the Museum of Modern Art, 1946. Three works are visible.

Installation photograph of artwork from the Georgia O'Keeffe exhibition at the Museum of Modern Art, 1946. Four works are visible in adjacent spaces.

Installation photograph of artwork from the Georgia O'Keeffe exhibition at the Museum of Modern Art, 1946. Three works are visible.

Installation photograph of artwork from the Georgia O'Keeffe exhibition at the Museum of Modern Art, 1946. Three works are visible in one room. A bench sits in the middle of the room.

Installation photograph of artwork from the Georgia O'Keeffe exhibition at the Museum of Modern Art, 1946. Four works are visible.

Installation photograph of artwork from the Georgia O'Keeffe exhibition at the Museum of Modern Art, 1946. Three works are visible.

Installation photograph of artwork from the Georgia O'Keeffe exhibition at the Museum of Modern Art, 1946. Three works are visible in one room, with another visible in an adjacent space. Handwritten on recto by O'Keeffe: "A tree hung to left of this."