A. No person shall erect or maintain or cause or permit to be erected or maintained, any blinker light upon or adjacent to any street within the City whether on public or private property, which emits a light the same as or similar to highway warning, danger or signal lights, and which blinker light is so located as to be visible from any public street unless under and in accordance with the terms of a permit in writing first obtained from the City Engineer.
B. The provisions of this Chapter shall not be deemed to apply to advertising signs upon private property consisting of continuous or intermittent lights in the form of illuminated words, letters or figures or portraying any advertising scene, figure or emblem and so constructed, arranged and located as to be clearly distinguishable from a highway warning, danger or signal light.
C. Nor shall this Chapter be deemed to apply to any government lighthouse nor to any warning, danger or signal light heretofore or hereafter erected or maintained as required by law or under orders of any board or commission of the State of California.