Photo, August 1956 Pierre Restany during the opening of the "Festival of avant-garde art", Cité Radieuse de Marseille
Document, 1958 Invitation card for the exhibition "Vitesse pure et stabilité monochrome" at galerie Iris Clert
Document, 1958 Yves Klein, Report on the exhibition "Pure Speed and Monochrome Stability" at Iris Clert, in collaboration with Jean Tinguely
Photo, 1959 Yves Klein, Iris Clert and Rotraut at the opening of the exhibition "Bas-reliefs in a sponge forest", Galerie Iris Clert