RIGHI (François) Du fil des heures aux signes caractéristiques. A book of figures & dialogical images etched, printed and illuminated by the author. Amsterdam, Galerie Da Costa, 1977, in-8, leaves in illustrated cover, with 12 numbered color etchings and one unnumbered etching. Limited edition of 35 copies on Arches vellum (no. 20), signed by the artist. Ex-libris Caswell. RIGHI (François). Flèche-en-ciel. Paris, François Righi,1975, in-8, leaves, printed cover, slipcase. With 18 etchings on copper and zinc. One of 9 copies on Arches vellum (no. 2) with watercolor illumination signed by the author. The illumination is missing. Ex-libris Antony Caswell.