The incredibly aromatic and perfumed 1974 Don PX Cosecha Vieja (a name I hadn't seen before), had notes of honeycomb, rosemary honey and licorice with flavors of bitter chocolate, beeswax and cinnamon. It's not too dense, and the sugar feels nicely integrated and more accessible in general. This was bottled in April 2017 with 450 grams of residual sugar. 22,800 bottles produced.