Antoni Clavé (1913-2005) Roi bleu et noir (Poster for an exhibition of the artist's work at the Galerie Beyeler, April-May 1957). Lithograph. Sheet size: 560x760 mm. Archives Clavé 70. color print. Very fine proof on white vellum, before the letter of the poster, numbered (out of 95, by mistake?) and signed in pencil. Small tears at the edges of the sheet. Full margins. Edition of 100 proofs. Galerie Beyeler, Basel, framed edition (not examined out of frame).