Ala. Code § 33-2-184
The docks facilities revenue bonds and refunding bonds shall be signed by the director and attested by the secretary-treasurer of the department, and all interest coupons (if any) applicable to the docks facilities revenue bonds or refunding bonds shall be signed by the director; provided, that a facsimile of the signatures of either or both of said officers may be printed or otherwise reproduced on any of the docks facilities revenue bonds or refunding bonds in lieu of their being manually signed, and a facsimile of the director's signature may be printed or otherwise reproduced on any of the interest coupons in lieu of their being manually signed. The seal of the department shall be impressed on the docks facilities revenue bonds and refunding bonds, provided that a facsimile of the said seal may be printed or otherwise reproduced on any of the docks facilities revenue bonds or refunding bonds in lieu of being manually impressed thereon.
Ala. Code § 33-2-184 (1975)