Mo. Rev. Stat. § 108.220

108.220. Unclaimed balances in bond issue, interest and sinking funds may be transferred to any other fund. — Whenever it shall appear to the state board of fund commissioners of the state of Missouri, or to the administrative or governing authority of any county, city, town, township, school district, road district, drainage district, levee district, or other political corporation or subdivision of this state, that any bond or bonds, or any interest coupon or interest coupons, theretofore issued by or on behalf of said state or by or on behalf of any such political corporation or subdivision, has or have not been presented for payment and redemption within a period of ten years from and after the due date thereof, such board or administrative or governing authority may transfer to any other fund or funds of the state, county, city, town, township, district or other political corporation or subdivision, as the case may be, any sum or sums then held for the payment and redemption of any such bond or bonds, coupon or coupons; provided, however, that nothing contained in this section shall be deemed or construed to abridge, limit or destroy any right of action now or hereafter existing in law or in equity for recovery upon any such bond or coupon.

(RSMo 1939 § 3317)