Photo, 1949 Christmas evening at Hans Hartung's with Yves Klein standing on the right, surrounded by Colette and Pierre Soulages
Photo, August 1956 Pierre Restany during the opening of the "Festival of avant-garde art", Cité Radieuse de Marseille
Photo, 1961 Pierre Restany during the exhibition "Yves Klein the Monochrome: il nuovo realismo del colore", Galleria Apollinaire