Artsy – Guests at the recurring Dada salon of the modern art collectors Louise and Walter Arensberg might have found themselves doing a double-take as they ambled through the couple’s Manhattan apartment on West 67th Street. As of 1919, two duplicate and identically sized versions of Marcel Duchamp’s iconic Nude Descending a Staircase (No. 2) (1912) graced the walls. One hung prominently above the couch, dwarfing a small Renoir; the other was mounted above a wooden desk. Both looked authentic. Had the high-profile collectors been duped by a convincing copy of the headline-making painting? – read more
