They were a gift, he said. One day, Picasso's wife, Jacqueline, handed him a box. “This is for you,” she told him.
At home, he looked inside and found “drawings, sketches, crumpled paper.” He wasn't interested. He put the box in his garage, and by his account he rediscovered it in 2009.
His wife told it a little differently. She told The New York Times that it was Picasso himself who handed over the box, and that he “never explained anything.”