Anais Anais 30ml white glass collector edition bottle - boxed

I'm trying to find out the value of a 30ml Collectors Edition White Glass Anais Anais bottle. There is over 3/4 of the perfume left. The box has a card sleeve - see picture 4- which shows a bit of wear but the box itself (inside and out) and bottle are in great condition.
It was given to me as a gift over 25 years ago. I used it a few times the first year I was given it and then had been stored in a cupboard.
Any help on value would be greatly appreciated as I've not seen one the same as this.
I have looked on eBay and the only 30ml bottle like this in its original casing is a brand new one which is on for $450. As mine is opened I understand it is not worth as much as this.
Many thanks in advance