First edition, one of 90 numbered copies, the only ones to be enriched with a piece of crumpled paper signed by César, an etching signed by Titus-Carmel and an original lithograph by Jean-Pierre Le Boul'ch, the “tirage de tête”. Numerous text and graphic contributions including those by Jacques Monory, Boltansky, Pierre Tilman, Le Gac, Peter Klasen, Daniel Biga, Hamilton, Gérard Titus-Carmel, Rémi Esnault,Françoise Thieck, Pierre Della Faille, Claude Held, César, etc... A rare and beautiful copy of the “tirage de tête” of this issue of the Chorus magazine, published from 1968 to 1973.