How old is this Old Parr?
 

My mother has had this in her china cabinet since I can remember.

The box is currently in a plastic bag to prevent any damage. The whiskey has never been opened.

How old is this? What is it worth? Any help would be appreciated. Thanks!

http://i49.tinypic.com/4l61ok.jpg

http://i49.tinypic.com/34693yw.jpg

http://i48.tinypic.com/2lvhauv.jpg

http://i46.tinypic.com/1okuqa.jpg

Any ideas?