It shall be unlawful for any person to be engaged in the business of selling at public
auction, or employ, or be an auctioneer of diamonds or any other precious or semiprecious
stones, or imitations thereof, watches, clocks, jewelry, and gold, silver or plated
ware, unless that person shall have an effective unexpired and unrevoked license authorizing
the same, and each auctioneer shall have a license or permit, all issued pursuant
to and under the provisions of this Chapter.