Etching b/w from 'Avanguardia internazionale', vol. 4; Passpartout sizes 30 x 22,5 cm; Paper sizes 26,5 x 19,5 cm; Image sizes 14,5 x 11 cm; Edition 60 + XXV + 15 e.a.; Signed lower right in pencil by the Artist; Numbered 46/60; Publisher Galleria Schwarz, Milano; Certificate of guarantee.