The first letter indicates which of that year's releases the bottle was a part of starting with "A", while the second digit is a number that determines the month of the year the bottle was released. The third and fourth digits indicate the year. Batch B520 is bottled at 127.2 proof.
The first letter indicates which of that year's releases the bottle was a part of starting with "A", while the second digit is a number that determines the month of the year the bottle was released. The third and fourth digits indicate the year. Batch B520 is bottled at 127.2 proof.