(a) Each bond shall be signed on behalf of the state by the governor and attested by the lieutenant governor, which signatures may be facsimile signatures. The seal of the state shall be impressed, imprinted or otherwise reproduced on each bond. Each interest coupon attached to the bond shall be signed by the facsimile signatures of the governor and lieutenant governor. If an officer whose signature appears on the bonds or coupons ceases to be an officer before delivery of the bonds, the signature is, nevertheless, valid and sufficient for all purposes, as if the officer had remained in office until delivery.
(b) A signature required on a bond issued by a political subdivision of the state may be a facsimile signature.