No person shall post or affix to any city tree any bill, poster, placard, picture, announcement, notice, advertisement or sign, or cut, paint, print or make any of the same upon such tree or affix or attach in any manner any other thing whatsoever, including any guy wire or rope to any such tree except for the purpose of protecting it or other purpose authorized by the city.
('61 Code, § 20.68) (Ord. 943, passed - - )