Civil Code (Cap. 16), article 656

656. (1) A secret will may be printed, type-written or written in ink either by the testator himself or by a third person. (2) Where the testator knows how to, and can write, the will shall, in all cases, be signe d by him at the end thereof. (3) Where the testator does not know how to, or cannot write, the provision of article 663 shall apply. Paper containing secret will to be closed and sealed.