Mo. Rev. Stat. § 447.080
If no person call for said goods, merchandise or other property, within sixty days from the receipt thereof, and pay freight and charges thereon, it shall be lawful for such carrier, commission merchant or warehouseman to sell such goods, merchandise or other property, or so much thereof at auction, to the highest bidder, as will pay said freight and charges, first having given twenty days' notice of the time and place of sale to the owner, consignee or consignor, when known, and by advertisement in a daily paper, or if in a weekly paper, four weeks, published where such sale is to take place; and if any surplus be left after paying freight, storage, cost of advertising and all other just and reasonable charges, the same shall be paid over to the rightful owner of said property at any time thereafter, upon demand being made therefor, within sixty days; provided, however, that any common carrier may sell such goods, merchandise, or other property in accordance with the provisions of the bill of lading applicable thereto, where the form of bill of lading used has been duly filed with the public service commission of Missouri.
§ 447.080, RSMo