Mo. Rev. Stat. § 277.060
277.060 Posting of license.
277.060. Posting of license. — Every licensee licensed under the provisions of this chapter and carrying on or conducting business under the license shall publicly post, in a conspicuous place in or at the place of business, the license issued by the state veterinarian, the license to be kept so posted or displayed for inspection by any person.
(L. 1943 p. 310 § 6, A.L. 1957 p. 20)