I Vedenti (The Sighted). 1967

Plaster, 23 5/8 x 23 5/8 x 2 3/8" (60 x 60 x 6 cm). Viaindustriae/Private collection, Foligno. © 2012 Estate of Alighiero Boetti / Artists Rights Society (ARS), New York / SIAE, Rome