A wide, authentic and unique optical wood panel, Abstract Geometric, Op-Art, Kinetic composition of square & triangular slices of wood forming infinite reliefs and light variations, mounted and framed on/in a massive metal structure, created by Charles Gianferrari & L'Oeuf Centre d'Etudes, for visionnary architect Roger Anger, France 1970. This important piece of art is massive (weight allows only 4 people to carry it!) and can be used as a relief or painting to be placed on a wall (2 fixation mounts in the back), or as a piece of architecture to be integrated in an interior design. As it was initially meant to be\. It is important to mention the size of this monumental piece is precisely defined and limited by a strong straight and massive wrought iron frame around the wooden composition. This is not a "modular" piece but a full and complete piece of art / architecture. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution