The following signs accessory to automobile service stations are permitted in addition to signs permitted in Business Districts:
(a) Racks for the orderly display of engine oil and for convenience in dispensing such oil may be located on or at the ends of pump islands (limit of two to each island).
(b) Two open portable tire racks (not more than seven feet in height, including signs, and six feet in length) on casters for the purpose of displaying new tire casings shall be permitted for each gasoline or tire service station.
(c) Items for sale on the premises may be openly displayed within ten feet of the principal building. Products may be displayed under pump island canopies or between pumps within the area of the pump island base.
(d) A sign may be painted on the inside and outside front door face of the closed tire rack but shall not be painted on the sides or rear.
(1977 Code § 59-407)