Just out of interest the statement "aged up to 50 years" is both illegal to have on the bottle or packaging and very misleading. There may only be a minute amount of 50 year old in this vatting with the rest possibly 3 to ?? years old. I have heard reports of some very small companies actually taking a litre of very old whisky from a cask and putting that into a young vatting.
So be careful about any statement that says "aged up to" either on the bottle, packaging or in adverts.