Museum of Modern Art (New York, N.Y.)

Marcel Duchamp at his old studio on rue Larrey, Paris. Photo by Pierre Joly and Véra Cardot. Copy print received from the Museum of Modern Art.

Marcel Duchamp, Irina and Lizica Codreanu, and Constantin Brancusi in Brancusi's studio. Copy print received from the Museum of Modern Art. Another version is in the Alexina and Marcel Duchamp Papers at the Philadelphia Museum of Art.

Marcel Duchamp on the balcony of the Hotel Brighton. Paris, France. Photo by Katherine Sophie Dreier. Copy print received from the Museum of Modern Art. Another version is in the Alexina and Marcel Duchamp Papers at the Philadelphia Museum of Art.

Marcel Duchamp with comet shaved in hair. Photo by Man Ray. Copy print received from the Museum of Modern Art.

Marcel Duchamp with "Glider Containing a Water Mill in Neighboring Metals" in Paris studio. Copy print received from the Museum of Modern Art.

Marcel Duchamp working on "Eau & gaz à tous les étages." Photo by Richard Lusby. Copy print received from the Museum of Modern Art. Another version is in the Alexina and Marcel Duchamp Papers at the Philadelphia Museum of Art.

Marcel Duchamp working on "Eau & gaz à tous les étages." Photo by Richard Lusby. Copy print received from the Museum of Modern Art. Another version is in the Alexina and Marcel Duchamp Papers at the Philadelphia Museum of Art.

Marcel Duchamp's mannequin, "Rrose Sélavy" at the Exposition Internationale du Surrealisme, Galerie Beaux Arts. Copy print received from the Museum of Modern Art.

Duchamp, Marcel. Drawing for "The Clock in Profile," 1964. Copy print received from the Museum of Modern Art.

Duchamp, Marcel. "Torture-Morte," 1959. Copy print received from the Museum of Modern Art.