On the back, title, signature and year. Authentication on photograph by Jean-Marie Cusinberche. Provenance: Private Collection, Paris; Private collection, Turin. The work, painted on the set of the film "Georges Mathieu ou la fureur d'etre", broadcasted by Canal 2, Wednesday 22 December 1971, is described by Jean-Marie Cusinberche with these words: "It presents two series of signs: juxtaposed above, which show a sort of pictorial alphabet, and combined under which they form a whole. "