As you may be aware, Edinburgh crystal retailed a range of very nice lampwork and millefiore paperweights made on their behalf by Caithness. Sometime in the 80s - (am at work so I havent got my book). However I think this arrangement lasted for a year or two at most. I have seen a few Italian paperweights like this one badged as Edinburgh so it is very likely that at some time they entered into a similar marketing/badging arrangement - to augment their range without needing to manufacture. Will look for details of the others tonight