S.D. Codified Laws § 18-5-13
The certificate of the acknowledging officer shall be completed by his signature and immediately following his signature and immediately preceding his official description, he shall endorse thereon his name with a typewriter or print the same legibly with a stamp or with pen and ink, his official seal, if he has one, the title of his office, and if he is a notary public, the date his commission expires. Failure of an acknowledging officer to endorse his name on an instrument as required herein shall not render such instrument invalid, but a recording officer may refuse to accept such instrument for record until such endorsement is made.
Notwithstanding any provision in this chapter, a facsimile of the original signature and notarization may be used in lieu of an original signature when acknowledging a fidelity or surety bond in a form as required herein.
SDCL 18-5-13