The youngest I've tried from this brand name is the 1970 Don PX Convento Selección, the only one I tasted this time that fit into the classical canon, dense and serious with textbook aromas of carob beans, dark chocolate, tar and coffee and a relatively fresh palate with not so much alcohol and integrated sweetness considering it's supposed to have 510 grams of residual sugar. This is not yet bottle either, but they expect to produce some 14,000 bottles.