(a) Upon every person engaging or continuing within this City in the business of furnishing any real or tangible personal property, which has a tax situs in this State, or any interest therein for hire, loan, lease or otherwise, whether the return be in the form of rentals, royalties, fees or otherwise, the tax shall be one percent (1%) of the gross income of any such activity.
(b) "Tangible personal property," as used herein, shall not include money or public securities.