The Andy Warhol Authentication Board has decreed that any artworks the artist did not directly create will no longer be considered Warhol originals. “Andy Warhol often left assistants to ‘mass produce’ many of his most famous pictures, among them images of the Campbell soup tin. The decision means many art collectors are left with Warhol works which are now considered copies and therefore worth much less, and some are threatening to sue the board.”