Bas Jan's boyhood sailing permit recently resurfaced, issued July of 1959. Inside it is a note written by his mother, reading "Mrs. J.A. Ader Appels gives her son, Bastiaan Johan Christiaan Ader permission to go to sea."

Dutch/Californian artist Bas Jan Ader was last seen in 1975 when he took off in what would have been the smallest sailboat ever to cross the Atlantic. He left behind a small oeuvre, often using gravity as a medium, which more than 30 years after his disappearance at sea is more influential than ever before.