Ohio Rev. Code § 4737.011: Dealers in precious metals or jewels exempted.

Sections 4737.01 to 4737.04 of the Revised Code do not apply to the business of purchasing articles that are made of or contain gold, silver, platinum, or other precious metals or jewels. For purposes of this section, a person is engaged in the "business of purchasing articles that are made of or contain gold, silver, platinum, or other precious metals or jewels" if and to the extent that, in any manner, he holds himself out to the public as willing to purchase such articles for a consideration, and he intends to resell such articles, whether in the same or a different form or condition as when purchased.