S.C. Code Ann. § 25-1-370: Seal as authentication.

The seal used in the office of the Adjutant General shall be the seal of his office and shall be delivered by him to his successor. Where deemed appropriate orders issued from his office shall be authenticated with such seal and copies, order, records and papers in his office, duly certified and authenticated under such seal, shall be evidence in all cases in like manner as if the originals were produced.