Whoever desires to engage in any business or activity for which a license is required by § 111.01 shall file an application therefor with the Clerk-Treasurer and pay a license fee of $l00 for a calendar year, or part thereof. Upon receipt of the application and license fee, the Clerk-Treasurer shall issue a license therefor signed by the Mayor.
('75 Code, § 6l.2) Penalty, see § 10.99