Ohio Rev. Code § 943.06: Posting of license.

Every small dealer, dealer, and broker licensed under section 943.03 or 943.031 of the Revised Code, as applicable, and carrying on or conducting business under that license, shall post in a conspicuous place in or at the place of business of the licensee a copy of the license furnished by the department of agriculture, to be kept so posted and exposed for inspection by any person.