The GC/MC trace is an immutable record of the exact molecular composition (up to the capabilities of the GC/MS, some compounds may fall outside of its analysis

The GC/MC trace is an immutable record of the exact molecular composition (up to the capabilities of the GC/MS, some compounds may fall outside of its analysis range, but the Agilent 5975C shown in the images paired with the matching 7980A can measure pretty much anything you can smell), the trouble that these perfumers have is that you can no longer easily source the chemical compounds. Furthermore, from what I understand, only a few microliters were removed from the bottle and it was resealed, so it is not like the sample is lost to time, and it is probably better preserved now that it is being stored in a museum than sitting on the seafloor. I will be honest I am not thrilled that the contents are being kept a secret and used to sell overpriced perfume, but in general I am all for people reproducing relics if it means more people can be experience them!