Insider knowledge: Jack Daniel's 160th Birthday 1850-2010 whiskey is named whiskey by virtue of the fact it's from America. If distilled in Scotland the spelling would be Jack Daniel's 160th Birthday 1850-2010 whisky, as opposed to whiskey.
This bottle contains the same whiskey as in JD's regular black bottle. Don't open it (as it's for collecting -- not drinking), but keep it for generations to admire a great part of American history.