many thanks to both of you - especially for the alleged S. & W. attribution for the amber vase (possibly Keith Murray) - as you say, a great shame that Scottish Antiques omit a reference source for this provenance. R.S. Williams-Thomas book 'The Crystal Years (A Tribute To S. & W. etc.)' contains mostly high end historic pieces, art glass and specialities, and includes nothing like this vase - but assuming the S. & W. origin genuine and since they were selling to a glass dealer then likely such material wouldn't have been considered suitable for the book - the index in said book omits any reference to Elwell.
With the greatest of respect to Scottish Antiques whom I rate highly - I was an occasional customer in the days when I paid real money for glass - I would want a positive reference source for this attribution. I've no reason to doubt the information, but IMHO it would be common sense to have such information before laying out £140, and it might be worth while one of us making a request to S.A. - at least I might then be able to flog my vase for a similar sum.
IMHO, the turquoise flared vase is indeed Nazeing m, not that it has a label, and as far as I know their stuff was never signed, but I've seen enough over the years to feel happy with that provenance - I sometimes regret having parted with most of my glass, and Nazeing is one of the bigger regrets - it's colourful and a sort of jolly looking material.
The more I learn of this group (from the experts here), the more valuable it seems to become - if only we can nail the optic ribbed green vase as something valuable that would be great
thanks again.