Andy Warhol Black on White Paris, France | Sunday April 15, 2012 - Saturday April 21, 2012 During the Sixties, Andy Warhol made a rare documentation of subjects in time with his photobooth portraits ; These photobooth strips, no matter how much they are readymades, mark the first instance of Warhol making multiples using a strictly photographic medium, that is, the gelatin silver print.