29-108.Signature, how construed.The word signature includes the mark of a person unable to write his name; a mark shall have the same effect as a signature when the name is written by some other person and the mark is made near thereto by the person unable to write his name.SourceG.S.1873, c. 58, § 253, p. 782; R.S.1913, § 8908; C.S.1922, § 9929; C.S.1929, § 29-108; R.S.1943, § 29-108.