Photo, january 1957 Yves Klein during the exhibition "Proposte monocrome, epoca blu", Galleria Apollinaire
Exhibition, 17 Nov 1958 - 30 Nov 1958 Vitesse pure et stabilité monochrome by Yves Klein and Jean Tinguely Galerie Iris Clert, Paris, France
Document, 1958 Invitation card for the exhibition "Vitesse pure et stabilité monochrome" at galerie Iris Clert