Parking meters installed in the parking meter zones established pursuant to Section 454.02 shall be placed upon the curb immediately adjacent to the individual parking spaces. Each parking meter shall operate in such a manner as to show or display by a signal that the parking space adjacent to such meter is or is not legally in use. Each parking meter installed shall indicate by a proper legend the legal parking time established by the City and, when operated, shall indicate on and by its dial and pointer the duration of the period of legal parking and, on the expiration of such period, shall indicate illegal parking.
(1956 Code Sec. 763.06)