Johnnie Walker Extra Special Old Highland Whisky???
I have come across a bottle of 'Johnnie Walker Extra Special Old Highland Whisky???' in a relatives home. The bottle is clearly very old as it says "by appointment to his majesty the king" and is unopened and sealed.
Would anyone be able to tell me:
1. Is it rare?
2. Is it collectible?
3. Is it valuable?
I am unable to attach photos so would be happy to email photos on request.