All 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 localities and political subdivisions and all insurance companies and associations, savings banks and savings institutions, including savings and loan associations, commercial banks and trust companies, beneficial and benevolent associations, administrators, guardians, executors, trustees, and other fiduciaries in the Commonwealth may properly and legally invest funds under their control and (ii) that may properly and legally be deposited with and received by any state officer or officer of a locality or any agency or political subdivision of the Commonwealth for any purpose for which the deposit of bonds or obligations is authorized by law.