Suspended in a cube space frame is a Perspex sheet with a painted version of an electric wheelchair. It is painted in an anamorphic perspective projection so that when you view it from a peep hole ring it looks realistic against another painted view of a fountain in a park in Italy. This visual trick has been used since the Renaissance for example the skull in The Ambassadors by Holbein. More recently the technique is used by painted adverts on the pitch in rugby matches.