It’s difficult to say if this show of Bruno Ceccobelli’s work was an installation, a set design, or a happening. It consisted of a single room-size environmental piece, entitled Natività (Nativity, 1987), made up of several dozen sculptures of various kinds laid out like a Neapolitan Christmas crèche. Although none of the traditional elements were actually represented (i.e., the Madonna, Christ child, or manger), it was obviously modeled after a typical Nativity scene; the show was even timed to coincide with the holidays, from Christmas eve to Epiphany. But instead of a crowd of puppets paying