Ohio Rev. Code Ann. § 4728.12
(A) A person exempt from licensing under division (E) or (F) of section 4728.11 of the Revised Code, and who in the ordinary course of the person's business obtains ownership by purchase of articles made of or containing gold, silver, platinum, or other precious metals or jewels of any description from the public, shall maintain at each business location for at least the twelve months immediately succeeding any such transaction a record that shall include the following: