It is the duty of every person owning or occupying any house or other building constructed in the city fronting or abutting upon any street or avenue, to place or fix upon the door in front of said building in plain painted, printed, or metallic numerals of not less than three inches in height, the proper number assigned to each house or other building, and to thereafter keep and maintain the numbers so placed or affixed so that the same will be at all times visible and legible by persons in the street immediately in front of such house or building.
(Prior Code, § 93.004)