Ohio Revised Code Title XIII. Commercial Transactions § 1329.32

(A) The brand, label, or mark required by section 1329.31 of the Revised Code for goods, wares, and merchandise made outside the state of Ohio shall contain at the head or top of the brand, label, or mark “prison made” followed by the year and name of the correctional institution in which it was made, in plain English lettering of the style known as greater primer Roman capitals.

(B) The brand, label, or mark required by section 1329.31 of the Revised Code for goods, wares, and merchandise made within the department of rehabilitation and correction in the training program of the Ohio penal industries for the employment of prisoners shall state “OPI correctional industries.”

(C) The brand or mark required by this section shall be placed upon the product if possible or, if branding or marking is impossible, a label shall be placed upon the product. A label shall be placed upon each box or crate in which the goods, wares, and merchandise are packed.