Bonds issued by the Authority under the provisions of this article are securities (i) in which all public officers and bodies of the Commonwealth and its political subdivisions, insurance companies, trust companies, banking associations, investment companies, executors, administrators, trustees, and other fiduciaries may properly and legally invest funds, including capital in their control or belonging to them and (ii) that may properly and legally be deposited with and received by any officer of the Commonwealth or any of its localities or any agency or political subdivision of the Commonwealth for any lawful purpose.