In 1958, gallery owner Leo Castelli discovered Johns while visiting Rauschenberg's studio. “And we went down," Castelli remembered. "And then I was confronted with that miraculous array of unprecedented images -- flags, red, white and blue... All white... Large ones... small ones, targets... numbers, alphabets. Just an incredible sight... Something one could not imagine, new and out of the blue." Castelli immediately offered Johns his first solo show. It was here that Alfred Barr, the founding director of New York's Museum of Modern Art, purchased four works from this show. In 1960 he received the Vincent van Volkmer Prize. In 1963, Johns and Cage founded Foundation for Contemporary Performance Arts, now known as Foundation for Contemporary Arts in New York City.