Mo. Rev. Stat. § 151.310
Current with changes from the 2023 Legislative Session
Nothing in this chapter shall be so construed as to avoid or impair the obligation of any contract relating to the payment of such taxes heretofore entered into or made between any such company, its agents or persons owning such cars, and any such railroad company.
§ 151.310, RSMo
RSMo 1939 § 11280, A.L. 1945 p. 1825 § 37