Iowa Code § 493.4
Subject to any limitations and restrictions set forth in the articles of incorporation, or amendment thereto, any such corporation may issue its authorized capital stock without par value for such consideration as may be prescribed in the articles of incorporation, or amendment thereto, or, if not prescribed, then for such consideration as may be fixed by resolution passed by the stockholders of such corporation at any annual meeting thereof, or at any special meeting thereof duly called for that purpose, or by the board of directors acting under authority of such stockholders given in like manner. In the absence of fraud in the transaction, the judgment of the board of directors in fixing and determining such sale value shall be conclusive as to the creditors and stockholders. Nothing in this chapter shall be so construed as to repeal the law as it now appears in sections 492.6, 492.7, and 492.8.
Iowa Code § 493.4
Referred to in §493.5