INDIANA, ROBERT; ANDY WARHOL, et al. Stamped Indelibly. Complete with mounted rubber-stamped title, contents leaves, colophon and 15 prints in colors on wove paper, each signed in pencil except Grooms/Koch, Malanga and Warhol, as usual. 4to, publisher's burlap covered boards. Limited edition, number 142 of 225 total copies, signed in pencil on the justification by William Katz. Provenance: ex-collection Robert Indiana, with his blindstamp on front free endpaper. Includes works by: Robert Creeley; Tom Wesselmann; Red Grooms and Kenneth Koch; Marisol; Robert Indiana (2); Josef Levi; Gerard Malanga; Allen Jones; Andy Warhol; Peter Saul; Claes Oldenburg (2); Allen Ginsberg; and John Willenbecher. Unsophisticated copy, with all prints intact. Fine. New York: William Katz/Indianakatz, 1967