Opinion by
(No. 54390;
First District —
November 6, 1972.
Rehearing denied December 5, 1972.
Richard L. Curry, Corporation Counsel, of Chicago, (Marvin E. Aspen and Daniel Pascale, Assistant Corporation Counsel, of counsel,) for appellant.
Maurice J. Nathanson, of Chicago, (Ronald S. Cope, of counsel,) for appellees.
Opinion by