Mo. Rev. Stat. § 271.060
If no person claim and prove said stray within the time limited in section 271.050, the taker-up shall go before some associate circuit judge of the county and file a copy of the notice given by him, as prescribed in section 271.050, and make affidavit that the animal or animals was or were taken up on his plantation or the plantation of another, as the case may be, and that the marks and brands have not to his knowledge been changed since the same was or were taken up; that he set up or caused to be set up three notices containing a description of the property in three public places in the township where the property was taken up, and also forwarded a copy of such notice to the county clerk thirty days previous to filing this affidavit, and that the notice herewith filed is a true copy of those set up and forwarded to the county clerk.
§ 271.060, RSMo
Effective 1/2/1979