The Metropolitan Pier and Exposition Authority is authorized to borrow money and issue bonds in a total amount not to exceed $40,000,000 for the purpose of reconstructing the convention hall and exposition building known as McCormick Place. Such bonds shall be payable solely from funds received by the Authority from appropriations, if any, to be made to said Authority from time to time by future General Assemblies of the State of Illinois .
70 ILCS 215/3