There is a Fragrance so famous that everyone on earth knows its name but it is so rare that only very few living human beings can boast at having ever smelled it. It is the Musk.
The Musk oil attar  comes from a small deer that has two fangs that he uses to scratch forest lichens on which it feeds.

The smell of the Musk oil attar  Glands (pods) is most sweet but when it is opened to extract the grains, their Fragrance is totally different.

On first impact, musk oil attar  is extraordinarily powerful, even for a Fragrance like me, who is used to working with pure essences, and it is not particularly nice, is smells like ammonia, but only because it is fresh and very concentrated. In fact 3 small grains of one gram are sufficient to make a liter of alcoholic perfume.
The best way to understand and appreciate the delicacy of the musk deer perfume is to smell the box or the vase that contains it from the outside. It seems that it is so potent that it passes through the walls of the recipients.
There were two customers who were buying the ingredients to make a traditional medicine. They took the most costly of all products; thin edible gold sheet, Musk, Ambergris, Saffron from Iran and Sea Pearls.

For this reason the trade of Musk has been forbidden but it is of no avail because the poor hunter wants to bring some money home for his family and so, he kills the deer musk.