1140.39 SIGNS PERTAINING TO PARKING AREAS.
   No signs except those indicating the operator, the purpose of the lot or instructions for parking shall be permitted. Such a permitted sign shall be limited to not more than one such sign on each street of the lot side, shall not exceed twenty (20) square feet in area, shall not extend more than ten feet in height above the ground, and shall not be located outside the part of the lot used for parking or located less than fifty (50) feet from a lot line.