Metals supports or braces shall be adequate for wind loadings as provided in Section 1385.09. Wire or cable supports shall have a safety factor of four. All metal, wire cable supports and braces and all bolts used to attach sign to bracket or brackets and signs to the supporting building or structure shall be of galvanized or an equivalent material. All sign supports shall be an integral part of the sign design.
(1952 Code § 43-4-8)