E.a. Edition and signature lower in pencil. Edition: 3 nominative copies + X on Japon paper + 50 + 20 copies out of print numbered from XI / XXX to XXX / XXX, 3 copies for collaborators marked H.C. on Arches paper. Publisher Société International d'Art XX Siècle, Paris and Leon Amiel, New York; printer Mourlot, Paris. Bibliography: Guido Guastalla, Giorgio Guastalla, Marino Marini. Catalogo ragionato dell'Opera grafica (Incisioni e Litografie) 1919-1980, Edizioni Graphis Arte, Livorno, 1990, pp. 243, 257, n. L 109.