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 cuttlefish bone inside a birdcage. Sélavy also appears on the label of "Belle Haleine, Eau de Voilette" (1921), a readymade that is a perfume bottle in the original box. Duchamp also signed his film "Anemic Cinema" (1926) with the Sélavy name. The inspiration for the name Rrose Sélavy has been thought to be Belle da Costa Greene, J.P. Morgan's librarian at The Morgan Library & Museum (formerly The Pierpont Morgan Library) who, following his death, became the Library's director, working there for a total of forty-three years. Empowered by J.P. Morgan, and then by his son Jack, Greene built the