d. a. levy., When the Light Went On, from the series Zen Concrete, 1967. nk, mimeograph, offset text, typewriting, and paper collage, 11 x 8 9/16 inches. Collection of Pérez Art Museum Miami, acquired from the Sackner Archive of Concrete and Visual Poetry, with support from the John S. and James L. Knight Foundation. Photo: Sid Hoeltzell