 In 2006 a commissioned work by <unk> was exhibited at <unk> College at the University of New South Wales as part of a charity fundraising exhibition . It sold for A $ 22 @,@ 000 . As of the end of 2008 , the highest recorded auction price for an item of <unk> 's work was $ 22 @,@ 800 , set in May 2007 . An image based on a <unk> by <unk> , Bush <unk> , appears on the cover of a book on the visual perception of motion , Motion Vision . 
