I have a bottle of Blended Scotch Whisky that I am trying to find the value of. It is about 60 years old in it's original bottle unsealed. Info is "By Appointment to her Majesty the Queen Scotch Whisky Distillers James Buchanan & Co. Ltd." It is blended and bottled in Scotland by James Bucheeneen Ltd. The distillers Glasgow & London Glentauchers Distillery Mulben Spayside. Can anyone help me with this?