Photo, 1949 Christmas evening at Hans Hartung's with Yves Klein standing on the right, surrounded by Colette and Pierre Soulages
Photo, 1961 Pierre Restany during the exhibition "Yves Klein the Monochrome: il nuovo realismo del colore", Galleria Apollinaire
Photo, 15 octobre 1955 Yehuda Neiman and Manuel Alter at the opening of the exhibition "Yves: paintings", Lacoste Publishing - Club des Solitaires