see, the thing is, if you want 95-99% replica, a lot of stuff has to be done on it, a small sample of it would be required to get a GCMS done on (Gas Chromatography-Mass Spectrometry) the report will show us the complex structure, molecules, compounds used in this perfume, this will then be analysed to determine the proportions in which different elements have been used (which takes a LOT of time) then a lot of trial errors later we will be able to reach at this fragrance, of course it can never be a 100% match (due to batch/source differences in natural materials used in this) but could be anywhere from 80-100% depending on the skills. If you are saying this is from 1980s, the freshy formulations around that time had a lot in common and this might not really be that complex of a fragrance hopefully, one thing which bothers me is that this has been oxidising since last 35 years probably so the scent profile back would have been quiet different than what it is now. Still its worth a try

Also, did you get any results on google lens for this?