L.H.O.O.Q. a late interview (Schwarz 203), Duchamp gives a loose translation of "L.H.O.O.Q." as "there is fire down below". Francis Picabia, in an attempt to publish "L.H.O.O.Q." in his magazine 391 could not wait for the work to be sent from New York City, so with the permission of Duchamp, drew the moustache on Mona Lisa himself (forgetting the goatee). Picabia wrote underneath "Tableau Dada par Marcel Duchamp". Duchamp noticed the missing goatee. Two decades later, Duchamp corrected the omission on Picabia's replica, found by Jean Arp at a bookstore. Duchamp drew the goatee in black ink with a fountain pen,
Fountain (Duchamp) porcelain, with a signature reproduced in black paint. Of all the artworks in this series of readymades, "Fountain" is perhaps the best known because the symbolic meaning of the toilet takes the conceptual challenge posed by the readymades to their most visceral extreme. Similarly, philosopher Stephen Hicks argued that Duchamp, who was quite familiar with the history of European art, was obviously making a provocative statement with "Fountain": Since the photograph taken by Stieglitz is the only image of the original sculpture, there are some interpretations of "Fountain" by looking not only at reproductions but this particular photograph. Tomkins notes