The Ackland Art Museum at the University of North Carolina at Chapel Hill has acquired what is widely considered to be a masterpiece of 20th century art by Marcel Duchamp.

The newly-acquired work of art by Duchamp, “From or by Marcel Duchamp or Rrose Sélavy,” is a so-called “boîte” (box) containing 80 small-scale reproductions of the artist’s works. These range from his avant-garde paintings, such as the famous “Nude Descending a Staircase” that scandalized the New York art world at the Armory Show in 1913, to his provocative “ready-mades,” including the 1917 “Fountain,” an inverted urinal signed with the pseudonym “R. Mutt.”