Les Forts de Latour Pauillac Red Bordeaux Blend

This 1971 was in good shape filled to the neck, the cork split which is expected, and lots of sediment present. However color was light almost fragile as well as the initiate taste. I thought it may have been dead, but after 5h of decanting, the color turned into a rich dark red and quality has significantly improved. Some tannin present, a slight sweetness, wood, and something special that I can't quite figure out.