Torino: Marco Noire Editore, 1986
23.5 x 23.2 cm, ten loose sheets in box with each sheet being a hand-printed colour lithograph – twice folded and each opening to 22 x 68cm. Artist’s book displaying Lewitt’s variations on the titled shape. One of only 400 numbered and signed copies. Fine. One of Lewitt’s most sought after and rarely encountered publications.