Thanks for the information everyone.
From my own research, i found out that the bottle is dated around the 1940s era although there is no real way of authenticating this.
In answer to the last post, the bottle is sealed and shows no sign of tampering. The whisky inside is at the level one would expect. The paper cover is, however, rather tired but i guess it would do at this age. I have no real plans or thoughts either way.
If someone came along and offered me a fair price, I would take the bottle back to scotland with me in October and send it from there.