Metal, magnets and plastic. Signed and numbered to label to verso. Co-published by Editions William Wise, Lacoste-Vaucluse, France and Editions Pyra A.G., Zurich.

'Planetary Folklore Participations No. 1' by Victor Vasarely is an installation from 1969, measuring 51 × 51 × 1 cm. A 10 × 10 grid of square units, each containing a centred circle or a smaller inset square, covers the surface in an unbroken field of saturated colour. No two adjacent cells share the same combination of hue and form: reds, oranges, yellows, greens, blues, and purples cycle without apparent repetition, producing a restless chromatic energy that resists any single focal point. Vasarely, the central figure of the Op Art movement, built his practice on the premise that the generative idea — the system — held more value than any individual object, a position he stated directly: 'It is the original idea that is unique, not the object itself.' This grid work, with its modular logic and its insistence on colour contrast over illusionistic depth, is a direct expression of that democratic, reproducible aesthetic.