The provisions and regulations of this chapter shall not apply to the following signs; provided, that such signs shall be subject to the provisions of Section 12.20.090:
A. Real estate signs not exceeding eight square feet in area which advertise the sale, rental or lease of the premises upon which such signs are located only;
B. Professional name plates not exceeding one square foot in area;
C. Signs painted on the exterior surface of a building or structure; provided, that if such signs have raised borders, letters, characters, decorations or lighting appliances, they shall be subject to all applicable provisions of this chapter;
D. Bulletin boards not over eight square feet in area for public, charitable or religious institutions when the same are located on the premises of such institutions;
E. Signs denoting the architect, engineer or contractor when placed upon work under construction and not exceeding sixteen square feet in area;
F. Occupational signs denoting only the name and profession of an occupant in a commercial building, public institutional building or dwelling house and not exceeding two square feet in area;
G. Memorial signs or tablets, names of buildings and date of erection when cut into any masonry surface or when constructed of bronze or other incombustible materials;
H. Traffic or other municipal signs, legal notices, railroad crossing signs, danger and such temporary, emergency or nonadvertising signs as may be approved by the city commission. (Prior code § 21-1-15)