Photo, 1957 Yves Klein in front of his Sponge Sculpture at the exhibition "Monochrome Propositions of Yves Klein" Gallery One, London
Exhibition, 10 May 1957 - 25 May 1957 Yves Klein : Propositions monochromes Galerie Iris Clert, Paris, France
Document, 1957 Invitation card for the double exhibition "Yves Klein: Propositions monochromes" at the Iris Clert and Colette Allendy Galleries
Film, 1958 Yves Klein's exhibition : La spécialisation de la sensibilité à l’état de matière première [The Specialization of Sensibilité in the Raw Material State of Stabilized Pictorial Sensibilité]