Each street crossing Smith Street shall have the word "north" or the word "south" prefixed to its name proper, according as the line of such street lies north or south of said Smith Street. The name of each street in the city shall be placed on a signboard with white letters set in a background of the same material, the whole to be smooth on the face of such sign and of a size sufficient to admit the name of the street in plain letters, and securely placed and fastened to a telephone pole or corner building, electric pole, or other pole to be erected for the purpose.
('74 Code, § 152.03)