Whenever an identifying sticker, tag, plate or symbol has been issued for a vehicle, device, machine or other piece of equipment included in the measure of a license tax, the person to whom such sticker, tag, plate or symbol has been issued shall firmly affix such upon each such vehicle, device, machine or piece of equipment and keep it affixed at such place as is decimated by the Collector during the period for which the sticker, tag, plate or symbol is issued. It is unlawful for any person to fail to comply with the provisions of this section.
(`78 Code, § 5.02.140.)