No person shall keep, maintain or display on the premises of any motor vehicle service station, motor vehicle garage, gasoline service station or filling station, any sign, banner, streamer or card, or other advertising medium indicating or showing the price of gasoline or other motor vehicle fuel sold, offered for sale or advertised for sale, unless the price per gallon, including all taxes, is quoted or shown on the sign, banner, streamer, card or other advertising medium, together with the brand name or trade name of such gasoline or other motor vehicle fuel sold, offered for sale or advertised for sale, from such premises, provided, that if the gasoline or other motor vehicle fuel sold, offered for sale or advertised for sale is not sold under any trade name or brand name, then the same must be designated as “No Brand.”
Each and all letters, words, figures, numerals used, placed or indicated on any such sign, banner, streamer, or other advertising medium shall be uniform in size, provided that the provisions of this section shall not apply to signs required to be placed on pumps or other gasoline or motor vehicle fuel dispensing apparatus referred to in Section 28.16.