Miss. Code Ann. § 57-1-311

The bonds authorized by Section 57-1-307 shall be signed by the Chairman of the State Bond Commission, or by his facsimile signature, and the official seal of the commission shall be affixed thereto, attested by the Secretary of the State Bond Commission. The interest coupons, if any, to be attached to such bonds may be executed by the facsimile signatures of such officers. Whenever any such bonds shall have been signed by the officials designated to sign the bonds who were in office at the time of such signing but who may have ceased to be such officers before the sale and delivery of such bonds, or who may not have been in office on the date such bonds may bear, the signatures of such officers upon such bonds and coupons shall nevertheless be valid and sufficient for all purposes and have the same effect as if the person so officially signing such bonds had remained in office until their delivery to the purchaser, or had been in office on the date such bonds may bear. However, notwithstanding anything herein to the contrary, such bonds may be issued as provided in the Registered Bond Act of the State of Mississippi.