No sign, billboard, placard or other form of advertisement of the proposed patio garage and/or yard sale shall be placed upon any property within the city. No sign, billboard, placard or other form of advertisement shall be placed upon the premises where the sale is to be conducted more than two days prior to the day the sale is to commence, and shall be removed by 6:00 p.m. on the day the sale terminates. No more than two signs, billboards, placards or other form of advertisement shall be placed upon the premises and shall not exceed three square feet in size.
(`83 Code, § 5.64.050)