Victor Vasarely, 1908-1997, study for Tridim B, 1968, signed, card and paper collage on card, 38.5x28cm.; 15.25x11in. The Dino de Brasi frame was designed by Jean-Yves Mock especially for this collage. Provenance Denise Rene, Paris A gift from the above to the present owner Exhibited Zurich, Galerie Gimpel & Hanover, Victor Vasarely, 1969 The authenticity of this work has been confirmed by Madame Michele Vasarely.