(1) Each bond shall be signed with the facsimile signatures of the Governor, the Secretary of State, and the Chair of the Arkansas Development Finance Authority and by the manual or facsimile signature of the Treasurer of State or by a deputy of the Treasurer of State, and shall have affixed or imprinted thereon the Great Seal of the State of Arkansas.
(2) Interest coupons attached to the bonds, if any, shall be signed with the facsimile signature of the Treasurer of State.
(3) Delivery of bonds and coupons so executed shall be valid, notwithstanding any change in persons holding such offices occurring after the bonds have been executed.