50 ILCS 30/11
The holder or holders of any bonds or interest coupons appertaining thereto issued by an exhibition council or any of its officers, agents or employees of any contract or covenant made by the council with the holders of such bonds or interest coupons and to compel the council and any of its officers, agents or employees to perform any duties required to be performed for the benefit of the holders of any such bonds or interest coupons by the provision in the resolution authorizing their issuance, and to enjoin the council and any of its officers, agents or employees from taking any action in conflict with any such contract or covenant, including, as respects the holders of revenue bonds or interest coupons appertaining thereto issued by an exhibition council, the establishment of charges, fees and rates for the admission, rental, license or other use of facilities as hereinafter provided.
Notwithstanding the form and tenor of any bond, whether revenue or general obligation, and in the absence of any express recital on the face thereof that it is nonnegotiable, all such bonds shall be negotiable instruments. Pending the preparation and execution of any such bonds, temporary bonds may be issued with or without interest coupons as may be provided by resolution.
50 ILCS 30/11