The examiner in charge of liquidation in the Department of Commerce is hereby authorized to sign the name of the commissioner of commerce and to act for the commissioner in all matters connected with the liquidation of insolvent corporations under the supervision and control of the commissioner of commerce, with the same force and effect as though the commissioner had signed or acted; provided, that the examiner shall have no authority to order an assessment against the stockholders of an insolvent state bank or trust company under the provisions of Laws 1927, chapter 254, as amended.