If you can find someone that collects alcohol related memorabilia perhaps.
Or if the bottle is in a decorative bottle, or was created as a celebration or commemorative collectable.
Typically however most normal alcohol is not widely collected (unlike wine). It will at the very least retain its retail value (if sealed, it will not spoil), and perhaps a bit more if you manage to find someone that collects interesting bottles.
But unless there is something specifically special about the bottle, its not likely worth more than retail value.
Find the name of the distiller, from the bottle & contact them directly , just to be safe.
Yes
Probably, depending on its storage history.
no, replace your milk.
It's over 100 years old and just a bit over $3,200.
YES
open or unopened? if unopened it will be safe to eat long after your dead
I just bought one (unopened) for 10 dollars CAN. Mint. As it is 31 years old I think I'll leave it unopened. Reid Hamilton, ON
Yes ,But it is not as good . I would drink it just to see what it is like .
old is gold means that the every old thing is valuable
No
Yes pretty much any old carvings are valuable.