Ohio Rev. Code § 4503.45
An owner of a collector's vehicle, upon complying with the motor vehicle laws relating to registration and licensing of motor vehicles, and upon payment of the regular license fee as prescribed under section 4503.04 of the Revised Code and any tax levied under Chapter 4504. of the Revised Code, and the payment of an additional fee of five dollars, which shall be for the purpose of compensating the bureau of motor vehicles for additional services required in the issuing of such licenses, shall be issued validation stickers and license plates, or validation stickers alone when required by section 4503.191 of the Revised Code, upon which, in addition to the letters and numbers ordinarily inscribed thereon, shall be inscribed the words "collector's vehicle."
R.C. § 4503.45