Glenfarclas on clearance marked down to £25 at my local M&S food (Twickenham branch), but scanned at £18. Very cheap for a quality malt.
Described on the bottle as "Highland Single Malt Scotch Whisky 2003". And on the back states "2003 bottled in 2013" which I guess makes it 10 year old, though it doesn't explicitly say that. Alcohol 43% vol.
I note that the current range seems to be a 40% 10 year old and a 43% 12 year old. Presumably this is old stock. 3 bottles on the shelf at my branch, no way of knowing which others have stock.
Ah - looks like it was a special bottling for M&S. Review here
rates it highly at £30.