Strathmill and Dufftown are two of Diageo's Speyside workhorses, producing malt whisky largely for the company's blends. Strathmill's goes into J&B and whilst there are some single malt bottlings of the Singleton of Dufftown most of it goes into Bells.
But what we have here is not the blends but two independent bottlings, a Strathmill from 1976 and a Dufftown from 1982, let see how they compare side by side!