70 ILCS 1850/22

(70 ILCS 1850/22) (from Ch. 19, par. 422) Sec. 22. In case any officer whose signature appears upon any check or draft issued pursuant to this Act, ceases to hold his office before the delivery thereof to the payee, his signature nevertheless shall be valid and sufficient for all purposes with the same effect as if he had remained in office until delivery thereof. (Source: Laws 1961, p. 2975.)