André Cadere designed the Barre de bois ronde in 1970 as a mobile artwork, which he could take with him and present everywhere he went. In the same year at the Paris Gallery Yvon Lambert a wooden stick came to service at a solo show by the artist Niele Toroni. From 1972 on contributions to art magazines like ‘L’Art Vivant’ or ‘Artitudes’ accompanied his activities. Lectures with titles like ‘Making Inorder’ or ‘Space and Politics’ followed and stressed out the relationships between his work and its socio-cultural context. The handmade sticks have been produced in seven ‘Permutations,’ which follow a conceptual pattern, yet contain a deliberate mistake. Each color is dedicated to a specific number, forming a ‘code’ and is subject to a ‘Carte d’Authenticité’ for the buyer of the artwork. The Barre de bois ronde, 1974, acquired 2002 by the Mercedes-Benz Art Collection, with its three colors and 21 segments is part of the variety Type B and has been a gift to his father.