30. (1)Where a person, having sold goods, continues or is in possession of the goods or of the documents of title to the goods, the delivery or transfer by that person or by a mercantile agent acting for him, of the goods or documents of title under any sale, pledge or other disposition thereof to any person receiving the same in good faith and without notice of the previous sale shall have the same effect as if the person making the delivery or transfer were expressly authorized by the owner of the goods to make the same.