§ Yvaral (Jean-Pierre Vasarely) (1934–2002), Structure Acceleree B, 1969,

§ Yvaral (Jean-Pierre Vasarely) (1934–2002), Structure Accélérée B, 1969, screenprint on metal with nylon filament, published by Éditions Denise René, Paris53 x 50 x 9.5cm