Document, 1960 Invitation card for the performance "Anthropométries de l'Epoque Bleue", Galerie Internationale d'art contemporain
Document, 1964 Invitation card for the exhibition "Yves Klein Peintures de feu" at the Galerie Schmela, Düsseldorf
Document, 1958 Letter from Yves Klein to the President of the International Confederation of Atomic Explosions
Document, 1969 Invitation card for the exhibition "Yves Klein" at the Nouvelle Galerie Lambert Monet, Geneva