It is unlawful to place any movable article on any window ledge, or other place abutting on any public street, alley, or sidewalk, or other public place, at a height above four feet from the ground, in such a manner that the same can, or is in danger of falling onto such street, alley, sidewalk or other public place.
(‘82 Code, § 9.44.020) Penalty, see § 130.99