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NEW YORK CITY, NY - APRIL 5: Iwan Wirth and David Zwirner attend 'Warhol's World' Photography and Television, Opening Reception and Book Launch at Zwirner and Wirth Gallery on April 5, 2006 in New York City. (Photo by Jimi Celeste/Patrick McMullan via Getty Images)

NEW YORK CITY, NY - APRIL 5: Iwan Wirth and David Zwirner attend 'Warhol's World' Photography and Television, Opening Reception and Book Launch at Zwirner and Wirth Gallery on April 5, 2006 in New York City. (Photo by Jimi Celeste/Patrick McMullan via Getty Images)