The district boundary lines are intended to follow the center lines of streets, alleys, lot lines or their extensions. Where a boundary line obviously does not coincide with any of the aforesaid lines, and where it is not located by dimensions shown on the Zone Map, it shall be determined by use of the scale appearing thereon. Any errors which may occur in the determination of such district boundary lines shall become the subject of amendment to this Zoning Code. (Ord. 21-1963. Passed 7-9-63.)