A copy of the commission issued by the governor or by the president of the railroad company to any successor of any of the original trustees (or any of their successors) named in the Act of incorporation, certified by the Secretary of State under the great seal of the State, or by the commissioner of the land department of the railroad company or its president, under the common seal of the company, as the case may be, shall be sufficient prima facie evidence of the regular appointment and due authority of the person named as trustee in such commission.
735 ILCS 5/8-1702