§ 1. That is shall be unlawful for any person, firm, or corporation other than a sheriff or other peace officer or any military unit of the state or of the United States or any common carrier for hire, to transport or have in his possession or under his control a firearm known as a machine rifle, machine gun, or submachine gun: Provided, That banks, trust companies or other institutions or corporations subject to unusual hazard from robbery or holdup, may secure permits form the sheriff of the county in which they are located for one or more of their employees to have such firearms: Provided further, That museums, American Legions posts, and other similar patriotic organizations may possess such firearms, when no usable as a weapon and when possessed as a curiosity, ornament or keepsake. § 2. That any person violating the provisions of the preceding section shall be guilty of a felony, and upon conviction shall be subject to imprisonment in the state penitentiary for not less than one year nor more than five years. § 3. Upon complaint being made on oath to any officer authorized to issue process for the apprehension of offenders that a firearm or firearms known as a machine rifles, machine guns or sub-machine guns as described in this act, are concealed in any particular house or place, and if such magistrate shall be satisfied that there are reasonable grounds for believing same to be true, he shall issue a warrant to search the house or place for such firearms . . . .