WOLS (Otto) (1913-1951). Drei kleine schwebende Formen. S.l., s.d. [Paris, Belmont, 1949]. 16 x 12 cm, framed under glass. Original etching for Le Théâtre de Séraphin by Antonin Artaud, 1949. Very rare proof before the letter, printed with lost edges, wider and lower than the one used for the edition, of which only 10 copies were printed.