Well, guess I should contribute a little more to show that whilst I am aware that I can't hold a candle to most of you, I do appreciate the effort and time that the experts give to help us beginners. Must admit to have been drinking this evening, plus the fact that as I'm not really computer literate I am unable to follow too much of what 'da technical wizard's' linguistics mean- but I know she is one hell of a clever woman
. Thus I apologise for the rambling.
Looking at the images that Nigel has added (sincere thanks to Bernard) I can say that my bowl looks very similar, even though the pictures are in b. & w. Like my bowl, these images show a glass that is much more transparent (less densly coloured) than other makers such as Wfrs. and Nazeing (of which I have one piece of each) I may be wrong, but I detect from the b. & w. pictures (Haden & Haden) that the bowl illustrated has an eliptical shaped raised bump in the bottom, rather than a truly circular shape. Mine also has a similar shaped raised lump. Think I am also right in saying that the outside surface of the pieces shown in Bernard's contibution appear to have a matt (non shiny surface) - pitted even perhaps - thus giving rise to my thoughts of 'Pompeian'. I see also that the colour mentioned is Amethyst.
On a more subjective note, yes, it is true that we jump to a conclusion more so if it leads to what we want to believe - and despite the experience and expertise of Lustrousstone, for whom I have great respect, I remain convinced that the base wear and internal marks of my bowl indicate that it is not a recent studio piece. Of course, pieces of this shape and design were/are iconic of 1920 - 1940 shapes, and whilst the design may well have been continued into the 1950's, I admit to having fallen into the trap of assuming my piece was automatically pre 1940 because of the shape. The folded rim on my bowl remains a slight source of mystery, however.
If it is of any use I can, of course, add more pictures, and am more than happy to bring along with me to the next Cambridge Fair, if anyone is interested.
My thanks to all of you for your interest, and I am now going to bed because I need to be up at 5 for the b.s. Paul S.