Mo. Rev. Stat. § 442.350
Provisions relating to acknowledgment or proof not to extend to last wills ...
442.350. Provisions relating to acknowledgment or proof not to extend to last wills and testaments. — None of the foregoing provisions in relation to the acknowledgment, proof or recording of instruments in writing, affecting real estate, shall be construed as extending to last wills and testaments.
(RSMo 1939 § 3440) Prior revisions: 1929 § 3053; 1919 § 2212; 1909 § 2823