§ 1. Any person other than a public officer, who carries concealed in his clothes any instrument or weapon of the kind usually known as a black-jack, slung-shot, billy, sand club, sand bag, bludgeon, metal knuckles, or any sharp or dangerous weapon usually employed in attack or defense of the person, or any gun, revolver, pistol or other dangerous fire arm loaded or unloaded, or any person who carries concealed nitro-glycerin, dynamite, or any other dangerous or violent explosive, or has the same in his custody, possession or control, shall be guilty of a felony, unless such instrument weapon or explosive is carried in the prosecution of or to effect a lawful and legitimate purpose. § 2. The possession, in the manner set forth in the preceeding Section, of any of the weapons or explosives mentioned therein, shall be presumptive evidence of intent to use the same in violation of this act. § 3. Penalty – Any person upon conviction of violating the provisions of this Act, shall, in the discretion of the court, be imprisoned in the State Penitentiary nor more than two years, or in the county jail not more than one year, or by a fine of not more than one hundred dollars, or by both such fine and imprisonment. Provided, however, that any citizen of good moral character may, upon application to any district court, municipal, or justice of the court, be granted the permission to carry a concealed weapon upon the showing of reasonable cause. . . . § 5. Emergency. An emergency is hereby declared to exist in that professional criminals are frequently found to carry concealed about their persons, the dangerous weapons or explosives mentioned in Section 1 of this Act. And, whereas, the present law is inadequate to prevent such criminals from carrying concealed weapons or explosives; therefore, this Act shall take effect and be in force from and after its passage and approval.