Created by the pioneering abstract artist Sonia Delaunay, *Rythmes-Couleurs* is a celebrated limited-edition publication featuring her signature bold, geometric compositions of interlocking circles and arcs rendered in vibrant, contrasting colors. This rare example, numbered 26 of 90, is hand-signed in ink by both the artist and author on the colophon, making it a highly collectible piece from the edition published by Editions de la galerie Motte, Paris. The work exemplifies Delaunay's lifelong exploration of Simultanism, her revolutionary theory of color relationships and rhythmic visual harmony.