The mayor's signature shall appear on all licenses and permits granted by the authority of the city council except as otherwise provided by law or provision of this code. In all cases where this code requires that the signature of the mayor shall be attached to any license, permit, contract, local improvement bond, or other written instrument, and in all cases where said provisions require the mayor's approval in writing or endorsement in writing, the mayor may, in his discretion, affix his signature or cause his signature to be affixed in such manner as may be authorized by law.
(Prior code § 3-4)