Artists barter pictures for food at Paris exhibition . The ' Barter Selon ' , the art exhibition which comes to the rescue of struggling Paris artists , has opened in Paris . Art lovers are allowed to exchange food and other necessities for the pictures of impecunious artists . The exhibition is a child of the depression which robbed painters and sculptors of a large portion of their market . Photo shows , butcher exchanged a leg of mutton for a picture at the exhibition . 28 December 1935