The rate fixed for taxation in § 35.01 shall be exclusive of all rates levied for the payment of principal and interest upon bonds or notes of the town heretofore or hereafter issued, as to which taxes, bonds and notes there shall be no limit as to rate and for the payment of which the Board of Commissioners shall have authority to levy and collect upon all of the real and personal property within the town an unlimited tax.
(1940 Code, Ch. D, Art. I, § 2)