Readymades of Marcel Duchamp to turn up any identical matches to photographs of the originals. However, there are accounts of Walter Arensberg and Joseph Stella being with Duchamp when he purchased the original "Fountain" at J. L. Mott Iron Works. Such investigations are hampered by the fact that few of the original "readymades" survive, having been lost or destroyed. Those that still exist are predominantly reproductions authorized or designed by Duchamp in the final two decades of his life. Shearer also asserts that the artwork "L.H.O.O.Q." which is recorded to be a poster-copy of the "Mona Lisa" with a moustache drawn on it, is
Marcel Duchamp a broader American audience. Duchamp's influence on the art world remained behind the scenes until the late 1950s, when he was "discovered" by young artists such as Robert Rauschenberg and Jasper Johns, who were eager to escape the dominance of Abstract Expressionism. He was a co-founder of the international literary group Oulipo in 1960. Interest in Duchamp was reignited in the 1960s, and he gained international public recognition. In 1963, the Pasadena Art Museum mounted his first retrospective exhibition, and there he appeared in an iconic photograph playing chess opposite nude model Eve Babitz. The photograph was later described by