Section 4. All such bonds shall be payable in not more than thirty years from the date of their issue, shall be issued in series payable in annual installments as may be determined by the city, and bear interest at a rate not exceeding six per centum per annum.
Section 4
Act 507 of 1937, § 4, under SECOND CLASS CITIES, NON-DEBT BONDS.
Act 507 of 1937, § 4