Mo. Rev. Stat. § 419.020
No lodging establishment in this state that constantly has a safe or safe deposit boxes in good order, suitable for the safe custody of money, jewelry, articles of gold and silver manufacture, and the like, behind the guest registration desk and that keeps a copy of sections 419.020 and 419.030 printed in large plain English type constantly and conspicuously suspended at the guest registration desk and in every guest room of the lodging establishment shall be liable for the loss of any such articles aforesaid, suffered by any guest, unless such guest first offered to deliver such property lost by him or her to such lodging establishment for custody in such safe or safe deposit boxes and such lodging establishment refused or omitted to take it and deposit it in such safe or safe deposit boxes for its custody and when deposited in a safe, to give such guest a receipt therefor.
§ 419.020, RSMo