(1) Where a mercantile agent is, with the consent of the owner, in possession of goods or of the documents of title to goods, any sale, pledge, or other disposition of the goods, made by him or her when acting in the ordinary course of business of a mercantile agent, shall, subject to the provisions of this Title be as valid as if he or she were expressly authorised by the owner of the goods to make the same: Provided that the person taking under the disposition acts in good faith, and has not at the time of the disposition notice that the person making the disposition has no authority to make the same.