The bonds authorized to be issued by this division shall be negotiable and payable to the bearer and may be payable in lawful money of the United States as the council may prescribe. By the ordinance providing for the issue of such bonds, full provision shall be made for their form and character. Said bonds shall have coupons attached to represent the interest thereon, and the council may provide that such bonds may be changed from coupon to registered bonds or vice versa. Such bonds shall be of such denomination or denominations as the council may direct, not to exceed $1,000.00 each, and not to be less than $50.00 each. They shall bear interest at a rate not to exceed six percent per annum, payable annually or semiannually, at such place or places as may be designated therein. They shall be issued under the corporate seal of the city or town and shall be signed by the mayor and the treasurer thereof and shall be disposed of at not less than par.
The council may, as provided in Section 11-50-97, by contract with the owner or owners of the sewers or sewer system purchased, provide that the bonds thereafter to be issued to pay for the same may, upon the consummation of said purchase contract, be issued to said owner or owners at not less than par in payment of the purchase price of such work.