This work was a study for the prop sculpture "T.W.U" which was installed in lower Manhattan on West Broadway from 1981-1982. The actual T.W.U. is reproduced in Ernst-Gerhard Guse's book Serra on pages 89-90 which was published in 1987 by Galerie Bochum for the exhibitions at Westfalisches Landesmuseum c fur Kunst und Kulturgeschichte Munster, Stadtische Galerie im Lenbachaus Munchen, and Kunsthalle Basel.