No person or persons, nor any firm or corporation shall broadcast or amplify sound into any public place by means of any loudspeaker, sound truck or any other device, without first having obtained a license so to do. All such licenses shall be for a particular occasion only, and shall be issued by the mayor for the particular day of such occasion and upon the payment of a fee of $0.50 therefor; provided, however, that the mayor, in granting such license, or the council, at any time, shall have the power and authority to restrict the hours for such use to such reasonable periods as may be determined and to limit such use to lawful purposes daily, which use and hours shall be set out in said license so issued. (Ord. 195 § 2, 1941)