298.22  Form — rate of interest — where registered.
  All of said bonds shall be substantially in the form provided for county bonds, but subject to changes that will conform them to the action of the board providing therefor; shall run not more than twenty years, and may be sooner paid if so nominated in the bond; bear a rate of interest not exceeding that permitted by chapter 74A, payable semiannually; be signed by the president and countersigned by the secretary of the board of directors; and shall not be disposed of for less than par value, nor issued for other purposes than this chapter provides.
  All of said bonds, when issued, shall be delivered to the secretary of the board of directors, who shall register them in a book to be kept for that purpose, and shall deliver them when they have been properly countersigned.
  The expenses of engraving and printing of bonds may be paid out of the general fund.
[S13, SS15, §2812-e; C24, 27, 31, 35, 39, §4407; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §298.22]
Form of county bonds, §331.446