Actually, Trebor, there are three different bottles and the type of the bottle determines its age
The oldest one came as 100 ml, was rectangular/oblong and had a cap rather similar to the Lutens export line, but silver-coloured and shorter. This one had also the details printed in off white on the bottle.
Then came the 75 ml (less juice, same price ), with the same oblong form and size but with a heavy glass bottom (hence the decrease in content); the cap changed to an oval shape and was longer.
The last batch comes in the cubic bottles you see i.a. on luckyscent.
I'm sorry I am unable to tell you the years when KM changed the styles (or was forced to...I think I remember a story about this? Not sure).