SEC. 37. Any person who shall sell, or keep for sale, within the city of Davenport, any toy pistol or toy gun which is discharged by means of any fulminating or explosive cap, cartridge, or other explosive substance, or which explodes any cap or cartridge containing fulminating powder or other explosive substance, and any person who shall use, discharge, or shoot off any such toy pistol or gun within said city, shall be deemed guilty of a misdemeanor, and punished accordingly.