Photo, 1959 Yves Klein at the opening of his exhibition "Bas-reliefs in a sponge forest", Galerie Iris Clert
Artwork, 1959 Receipt to Peppino Palazzoli for transfert of a Zone of Immaterial Pictorial Sensibility. Series n°1, Zone n°01
Artwork, 1959 Receipt to Jacques Kugel for transfert of a Zone of Immaterial Pictorial Sensibility. Series n°1, Zone n°02
Photo, 1957 Yves Klein in front of his Sponge Sculpture at the exhibition "Monochrome Propositions of Yves Klein" Gallery One, London