Old Bardstown is Willett’s entry-level bourbon family, which showcases their own distillate at younger ages.
This expression is bottled-in-bond, meaning that it was produced and bottled at a single distillery, in a single distillation season, aged for at least four years in a federally bonded warehouse, and bottled at 100 proof.
There are two additional Old Bardstown expressions, but Old Bardstown Bottled in Bond is available only in Kentucky.