Plymouth gin is technically a style of gin, but only one distillery produces it and it's one of the oldest recorded distilleries in the U.K. It's been through a lot–different owners, a little thing called World War II, the general progression of time and vodka. O'Neill schooled us: "Plymouth was very special because it named in the Savoy Cocktail Book, and it was in 23 gin recipes in the book. It was one of the most significant cocktail books in the world and still is to this day. So to have the actual name physically in it, is very very important.