Yoko Ono with Standing Woman (1932) by Gaston Lachaise, The Museum of Modern Art Sculpture Garden, New York. c. 1960–61. Photograph by Minoru Niizuma. © Minoru Niizuma. Courtesy Lenono Photo Archive, New York

Yoko Ono (Japanese, born 1933). Touch Poem #5. c. 1960. Hair, ink on paper, 9 7/8 × 13 7/16″ (25 x 34.1 cm). Private collection. © Yoko Ono 2014

Painting to See in the Dark (Version 1). 1961. Installation view with the artist, Paintings & Drawings by Yoko Ono, AG Gallery, New York, July 17–30, 1961. Photograph by George Maciunas. The Museum of Modern Art, New York. The Gilbert and Lila Silverman Fluxus Collection Gift, 2008. © 2014 George Maciunas

Painting to Be Stepped On. 1960/1961. Installation view, Paintings & Drawings by Yoko Ono, AG Gallery, New York, July 17–30, 1961. Photograph by George Maciunas. The Museum of Modern Art, New York. The Gilbert and Lila Silverman Fluxus Collection Gift, 2008. © 2014 George Maciunas

Works by Yoko Ono, poster, Carnegie Recital Hall, New York, November 24, 1961. Photograph by George Maciunas. The Museum of Modern Art, New York. The Gilbert and Lila Silverman Fluxus Collection Gift, 2008. © 2014 George Maciunas

Yoko Ono (Japanese, born 1933). Grapefruit. 1964. Artist’s book, offset, 5 7/16 x 5 7/16 x 1 1/4″ (13.8 x 13.8 x 3.2 cm) (overall, closed). Publisher: Wunternaum Press (the artist), Tokyo. Edition: 500. The Museum of Modern Art, New York. The Gilbert and Lila Silverman Fluxus Collection Gift, 2008. © Yoko Ono 2014

Cut Piece (1964) performed by Yoko Ono in New Works of Yoko Ono, Carnegie Recital Hall, New York, March 21, 1965. Photograph by Minoru Niizuma. © Minoru Niizuma. Courtesy Lenono Photo Archive, New York

Bag Piece (1964) performed by Yoko Ono in Perpetual Fluxfest, Cinematheque, New York, June 27, 1965. Photograph by George Maciunas. The Museum of Modern Art, New York. The Gilbert and Lila Silverman Fluxus Collection Gift, 2008. © 2014 George Maciunas

Yoko Ono (Japanese, born 1933). Sky Machine. 1961/1966. Stainless steel dispenser, metal pedestal, and handwritten cards. Dispenser: 51 3/16 x 16 1/8 x 16 1/8″ (130 x 41 x 41 cm); card (each): 1 x 1 3/4″ (2.5 x 4.5 cm). The Museum of Modern Art, New York. The Gilbert and Lila Silverman Fluxus Collection Gift, 2008

Yoko Ono (Japanese, born 1933). Apple. 1966. Plexiglas pedestal, brass plaque, apple, 45 × 6 11/16 × 6 15/16″ (114.3 × 17 × 17.6 cm). Private collection. © Yoko Ono 2014

Yoko Ono (Japanese, born 1933). Half-A-Room. 1967. Various objects cut in half, most painted white. Installation dimensions variable. Private collection. © Yoko Ono 2014

Yoko Ono and John Lennon. WAR IS OVER! if you want it. 1969. Offset, 29 15/16 x 20” (76 x 50.8 cm). The Museum of Modern Art, New York. The Gilbert and Lila Silverman Fluxus Collection Gift, 2008. © Yoko Ono 2014

Yoko Ono (Japanese, born 1933). Museum of Modern [F]art. 1971. Exhibition catalogue, offset, 11 13/16 x 11 13/16 x 3/8″ (30 x 30 x 1 cm). The Museum of Modern Art Library, New York. © Yoko Ono 2014