Mo. Rev. Stat. § 429.480: Secretary of state to file lien in his office.

It shall be the duty of the secretary of state to file in his office such accounts and liens when received, and to prepare and keep in his office a book in which shall be entered an abstract of all accounts and liens filed as aforesaid, which abstract shall be so arranged and indexed as to show, in a convenient form, the names of all parties claiming liens, the amount claimed by each, the railroad to which the same applies, the date of filing, and if discharged, when the same was done.