(Foreword: these are the notes relating to Ralph Lauren perfumes that Andre left. These notes should have become a complete post, but instead they remained in a raw state. Please consider that no one of us has any idea who "Saunders" is; he is probably a friend who worked at L'Oreal. - all pictures taken on the net, and added later)
About Calvin Klein: Saunders suggests to ask Piatigorsky, OK. I asked Saunders if he remembers anything about the Ralph Lauren batchcodes or methods for dating vintage RL perfumes. Saunders says he remembers just a few things, many years have passed and he has vague memories. The situation was very messed up with RL perfumes. Saunders remembers a couple of stories that clearly explains the situation they were in.... here it is: at a certain point dealing with "Ralph Lauren Polo Sport Women", they found themselves faced with three, four different batchcodes. These batchcodes had become so confusing and incomprehensible, thus they had to change batchcodes (this aspect needs to be explored further ).
The other story: at a certain point in the production of "Polo" and "Safari for Men", there was a stock of old stickers and boxes left. Well, they continued to use them until ran out. This means that the batchcode was up to date, ...but the labels on the bottle (and/or the box) were from 5-6 years old: i.e, stickers were outdated.
Really confusing. (to investigate further.).
Saunders says the scent he remembers best is Polo Crest, because he worked on the marketing personally. Polo Crest: launched in 1991, discontinued in 1999, and underwent a reformulation in the middle. OK.