Kovacs v. Cooper

"4. That it shall be unlawful for any person, firm or corporation, either as principal, agent or employee, to play, use or operate for advertising purposes, or for any other purpose whatsoever, on or upon the public streets, alleys or thoroughfares in the City of Trenton, any device known as a sound truck, loud speaker or sound amplifier, or radio or phonograph with a loud speaker or sound amplifier, or any other instrument known as a calliope or any instrument of any kind or character which emits therefrom loud and raucous noises and is attached to and upon any vehicle operated or standing upon said streets or public places aforementioned."