After first obtaining the written consent of all of the holders of the revenue bonds or certificates issued on the public buildings from which the excess revenues, rentals, or receipts are to be derived, the board may by appropriate resolution pledge the revenues, rentals, or receipts from public buildings authorized under this part in any one session of the Legislature in excess of those revenues, rentals, or receipts necessary for the payment of the principal of, and interest on, the certificates or revenue bonds issued to finance the construction of such public buildings, to the payment of the principal of, and interest on, the certificates or revenue bonds issued to
finance the construction of any other public buildings authorized under this part. This section shall not apply to public buildings authorized by the Legislature after the 1961 General Session.