Vintage New Eau de Toilette spray 50ml in its original (damaged) box, with no cellophane. This Limited Edition was released by YSL in ~2006 as the original Eau de Toilette. However, both I and other Opium wearers have found it to be slightly mossier and smokier, and just a tad less sweet than the Eau de Toilette in the classic clear bottle with the terracotta cap. Personally, this is the Opium I wear. See the link to Fragrantica to read more about it.
There are no returns, so please request a sample beforehand if you are unsure about your purchase.