Wis. Stat. § 170.03: Appraisal.

Every finder of a stray of the value of $10 or more, at the time of such taking up, shall within one month cause the stray to be appraised by the chairperson of the town, and a certificate of the appraisal, signed by the chairperson, shall be filed in the town clerk’s office. The finder shall pay the town chairperson 50 cents for the certificate and 10 cents per mile for each mile necessarily traveled to make the same.