El Septimo 2007 Borderies single caskEl Septimo Cognac, XO Vintage 2007 Borderies Appellation dOrigine Contrle, Vintage 2007, Cask #52 A 2007 vintage cognac from the smallest and most rare region of Cognac: the Borderies. This single cask was selected among thousands of rare cognac casks. The term of single cask is new for the cognac but much more developed in other brown spirits. It is a different mind set and a little rebellious as it goes against the more common standards to mass