Beware, true 1951 Knappogue Castle whiskey has a gold embossed seal in the upper left label, the date it was bottled, the number of the origin cask as well as the signature of the person who filled the bottle. Finding a true 1951, which is essentially extinct, is rare indeed. I had the good fortune to purchase six 1953 bottles in 1987 and still have two. That said, having amply sampled or gifted four of the bottles, this whiskey is tough on the palate, makes a fine collectors item, but it is not for mixed company. I.e., it will grow hair on your chest.