Mo. Rev. Stat. § 493.020
When any such advertisement shall be made by a public officer, thereunto authorized by law, the reasonable expense thereof shall be allowed and paid out of the county treasury, as other demands and charges of a like nature.
(RSMo 1939 § 14965)
Prior revisions: 1929 § 13772; 1919 § 10400; 1909 § 586