(a)
(1) The bonds shall be executed by the manual or facsimile signature of the chair of the Board of Trustees of the University of Arkansas and by the manual signature of the secretary of the board.
(2) The coupons attached to the bonds shall be executed by the facsimile signature of the chair of the board.
(b) In case any of the officers whose signatures appear on the bonds or coupons shall cease to hold those offices before the delivery of the bonds or coupons, their signatures, nevertheless, shall be valid and sufficient for all purposes.
(c) Each bond shall be sealed with the seal of the university.