Should the thing delivered be a specified one the creditor, independently of the right granted him by § 3018 of this title, may compel the debtor to make the delivery.\nShould the thing be undetermined or generic he may ask that the obligation be fulfilled at the expense of the debtor.\nShould the person obligated be in default, or be bound to deliver the same thing to two (2) or more different persons, he shall be liable therefor with regard to unforeseen events until the delivery is made.\nHistory —Civil Code, 1930, § 1049.
Puerto Rico Legal Code