Readymades of Marcel Duchamp not the true "Mona Lisa", but Duchamp's own slightly-different version that he modelled partly after himself. The inference of Shearer's viewpoint is that Duchamp was creating an even larger joke than he admitted. Readymades of Marcel Duchamp The readymades of Marcel Duchamp are ordinary manufactured objects that the artist selected and modified, as an antidote to what he called "retinal art". By simply choosing the object (or objects) and repositioning or joining, titling and signing it, the Found object became art. Duchamp was not interested in what he called "retinal art" — art that was only visual — and sought
Marcel Duchamp created the Société Anonyme in 1920, along with Katherine Dreier and Man Ray. This was the beginning of his lifelong involvement in art dealing and collecting. The group collected modern art works, and arranged modern art exhibitions and lectures throughout the 1930s. By this time Walter Pach, one of the coordinators of the 1913 Armory Show, sought Duchamp's advice on modern art. Beginning with Société Anonyme, Dreier also depended on Duchamp's counsel in gathering her collection, as did Arensberg. Later Peggy Guggenheim, Museum of Modern Art directors Alfred Barr and James Johnson Sweeney consulted with Duchamp on their modern art