Basically what GWH is saying is that this is from the late 60's
and not a very old 7yo bottle.
By the way you bottle
is still a 7yo bottle of whiskey just that it is a 40 odd year
old bottle of 7yo whiskey
However, Your bottle is a nice bottle to have and
will command a premium at the same time but not megga money.
Older
versions get between €400-500 usually so I would place your's in
the €200-300 bracket but I'm open to correction if anybody feels
it's worth more (or less).
I personally would not
offer much more than €200 as I'd be buying to drink (I'm not
offering by the way
) but if you get a few offers then you can push the price and
see where it goes. If you do decide to sell please keep
negotiations in the back ground (i.e. via the forum PM facility,
email or phone etc) and not on the actual forum.