I can't see from my photo whether the optic ribbing swirls or not and sadly this is the only photo of it I still have (I sold this bottle/decanter on ebay a few years ago).
I used to have far too many (30 or 40

) of this kind of tall bottle with pointy stopper. Sometimes a design would have Made in Italy moulded on the bottom and sometimes the same design in a different colour would be blank. A few were from France and one or two were marked Portugal.
Andy McConnell in his book 20th Century Glass (page 87) states for this
kind of bottle "Bormoili, Palma, 1970s".
John