Every person, firm or corporation shall, before using any wagon, cart or vehicle, or causing the same to be used for the collection or disposal of junk, obtain from the city clerk, for each wagon, cart or vehicle to be so used, two metal plates on which shall be stamped or painted the words "junk dealer" and also the number of the wagon, which number shall be fixed by the clerk, one of which plates shall be securely fastened on each outer side of such wagon, cart or vehicle. Such wagon, cart or vehicle shall also be prominently and plainly marked with the name of the licensee, together with the street and number of his place of business. (Ord. A-260 § 5, 1917).