A Douglas Laing bottling of Mortlach single malt, aged for 30 years! It was distilled back in February 1989 and left to mature in a single refill hogshead for three decades, until September 2019, when it was bottled at 44.5% ABV with an outturn of just 267 bottles as part of Douglas Laing's very fancy Xtra Old Particular The Black Series.