All licenses, tags, plates or other method of identification authorized by this title or other ordinances of the city shall be kept on display at a conspicuous place on the licensed premises, vehicle or device, or where neither premises, vehicle or device are licensed, on the person of the licensee or, in the case of licenses for billboards or signboards, at the place of business of the licensee.
(1992 Code, § 400:45) Penalty, see § 10.99