Jean Hélion (1904-1987) Poster for the exhibitionJean Hélion cent tableaux 1928-1970 at the Grand Palais. 1971. Lithograph. 447 x 560 mm. Color print. Reunion of a proof on heavy vellum, from the avant lettre print run, numbered, dedicated "pour Abel Rambert amicalement" and signed in pencil, and a proof on thin vellum, from the poster print run. Oxidation and a few short tears to edges. Full margins. Set. 2 p.