Ohio Rev. Code § 1719.04
The board of trustees of a charitable trust incorporated as provided in section 1719.01 of the Revised Code, may accept any subsequent grant or devise of money or property made to it or to such corporation in perpetuity, in trust, the principal or income of which, or any part thereof as may be provided by such grant or devise, is to be used and applied for the purposes for which the original trust was established. In such case said money or property shall be invested and administered in accordance with the code of regulations of such corporation. A certified copy of the deed or will making such grant or devise shall be filed with the secretary of state to be placed with the articles of incorporation and other papers relating to such corporation which are on file in his office.
R.C. §1719.04