Some scotch buff will pay a fortune for that for his collection.
Stick it on the bay!
little update:
How right you are !
I contacted the glenfarclas distillery who promptly forwarded the e-mail onto their current Owner and Director John Grant. It was his great,great grandfather who established the brand in 1865.
Cut a long story short they know of some collectors who would be very interested in purchasing it. They valued it at approx 300 euros so £250 ish.
Think im going to sell it, especially as i've been left another bottle of what appears to be (from my googling) even more expensive still