(70 ILCS 3110/18) (from Ch. 111 1/2, par. 7118)
    Sec. 18. Execution of bonds; negotiable instruments; registration; replacement. Effect of signature by formerly authorized individual. In case any officer whose signature or a facsimile of whose signature appears on any bonds or coupons shall cease to be such officer before the delivery of such bonds, such signature or such facsimile shall nevertheless be valid and sufficient for all purposes as if he had remained in office until such delivery.
(Source: P.A. 84-1320.)