I found this as part of a Google search :
"The Famous Grouse created 250 limited edition bottles of 37 year old blended malt to mark both Burns? 250th birthday and the 37 years of his short but fruitful life. Renowned Scottish artist and playwright John Byrne was commissioned to create an original drawing of Robert Burns to adorn this limited edition whisky, making it a unique collector's item as part of The World Famous Burns Supper celebration. In keeping with the humanitarian spirit of Burns, these bottles were only available for Charity Auction. Each one was valued at a minimum of £400 but some were **** for over £1,200 and on one occasion £2,887 was raised".
Sounds like you have a very valuable bottle od scotch on your hands!!