Thank you to all of you for your kind comments!
Just to update you, I've managed to pry open the sealed stopper without much ado after reading some advice on cleopatrasboudoir.com.
I released over 2 decades of saturated air above the perfume and it was like unearthing a dusty jewel, an ancient treasure.
My nose was assaulted by sharp green notes, with a strong note of vetiver, and the same castoreum I smell in Paloma Picasso firmly in the background,only about 3 times more pungent & bewitching.
After about 20 minutes,hints of leather start to peek through: a dirty, animalic type of leather. I start to feel dry in the throat smelling it, but I can't stop because it's mesmerising!
Will report soon about how this juice pans out.