SECTION 6 LIMITATIONS UPON ISSUANCE OF STOCK. Corporations shall not issue stock, except to bona fide subscribers therefor, or their assignees; nor shall any corporation issue any bond, or other obligation, for the payment of money, except for money or property received or labor done. The stock of corporations shall not be increased, except in pursuance of a general law, nor shall any law authorize the increase of stock, without the consent of the person or persons holding the larger amount in value of the stock, nor without due notice of the proposed increase having been previously given in such manner as may be prescribed by law. All fictitious increase of stock or indebtedness shall be void.