Thanks for the help. I have received a reply from Craig of Diageo with this info, he also directed me to people who can evaluate it if I decide to do so, not sure it is worth, though...
He also said the whisky may not be drinkable due to the age of it.
I thought it to be unique due to the Navy Stamp on it.
Blenderm- any chance as to a guesstimate on this?