I have the red label NAS, 57.4%. As well, I have a white label 10yo, 58.7%, purchased at an Ontario duty-free (in a one-litre bottle, new style, with red triangle and wide shoulders). Neither open, although I've had the NAS before.
Admiral, do you suppose that Murray gives an extra nine points just for having a number on the label?
These are plainly different bottlings, but whether they are different in intent or are simply diferent batches, like a'bunadh, I could not say.