Except in the R and A zones, for each ground floor occupancy of a building not more than two permanent signs may be painted on or otherwise displayed from the inside surface of any window, showcase or other similar facility. Such signs shall be in addition to those signs allowed under the other provisions of this chapter. The total area of such signs, however, shall not exceed a maximum sign area of four square feet. (Ord. 2016-0010 § 44; prior code § 3.12.197)