From Scotchwhisky.com:

Black Bottle was introduced in 1879 by Charles, David and Gordon Graham, members of a family of Aberdeen tea merchants who had branched out into whisky blending. True to its name, the blend was initially presented in black glass, but this was sourced from Germany, and the outbreak of the First World War in 1914 necessitated a switch to green glass. 

Over the years, Black Bottle changed hands and recipes until returning to "its north-east roots" in 2013 when owner Burn Stewart Distillers decided to tone down the signature Islay-influenced nature of the brand by introducing more Speyside malts into the recipe. Today’s Black Bottle boasts floral and oak aromas and fruit, smoke, honey and nutmeg flavours, with the Islay element in the blend being provided by Bunnahabhain. At various times 10 and 15-year-old expressions were available, but both have now been discontinued.