Just dropped in and thought I'd check backward through the posts. I'm haven't read this in detail, for some reason although I want to, my mind is concentrating properly

The turquoise blue does seem to come from what I call the 'Elwell era', that is the third period of Nazeing art glass. Sorry about the convoluted description, it made sense to me at the time and is something that is not always easy to describe.
The amber bubbled piece is a known S&W shape. Stop concentrating on the bubbles and add in the other factors that I know many of you already know

However, it is NOT Keith Murray. They are working on hope rather than a reference, since it certainly does not appear in the KM Description Book.
The green horizontally ribbed green pieces may well also be S&W, but I can't get the detail I need from the base shot properly, sorry.
T Webb, S&W and Gray-Stan all supplied Elwell with glass. They also bought from Czechoslovakia.
EDIT:
Oh, Geoff published what he could at the time. It did include ribbed pieces, both vertical and horizontal, but not how you're discussing them here perhaps. The vertical tends to be pre-war and on transparent coloured piece, whereas the horizontal is raised, almost applied, and post war.