Bonds of any maturity issued under this part 1 may be used at face value in paying taxes levied to pay the principal of such bonds; except that bonds maturing after the year in which the bonds are so used shall have all future due coupons attached thereto and no credit shall be allowed for such coupons. Interest coupons attached to such bonds and maturing in any year may be used at face value in paying taxes levied for such interest which becomes due and payable in that year.L. 33-34, 2nd Ex. Sess.: p. 61, § 6. CSA: C. 90, § 517. CRS 53: § 149-3-36. C.R.S. 1963: § 150-3-36. L. 88: Entire section amended, p. 1232, § 6, effective April 6.