One of the bottles I picked up as part of my 2016 Scotland trip when I visited the Bruichladdich distillery. The Micro-Provenance Series as Bruichladdich describes it is:
“An ongoing exploratory series of single casks, specially selected to examine the evolutionary influences on maturing Islay Single Malt Whisky – the variables of age, vintage, wood, barley, storage, humidity, heat and marine climate – the very essence of provenance.”