" Featuring Marcel Duchamp's Rotoreliefs and Mark Titchner's Ur Text...
Years later I first came across Marcel Duchamp's Rotoreliefs and of
course the connection was made. This was the progenitor of my beloved
gyrating friend whose commercial failure at alley F, Stand 147 of the
1935, 33rd Concours Lepine, had at least been slightly alleviated by
the mass-market familiarity of the Vertigo design."