the centre glass (clear) and to the right (uranium) may well be conifer (oddly I can't find that pattern in CH's b & w drawings) - I get confused with conifer and fir cone in view of the obvious connection

Some of these indistince patterns are not easy to id (or to photograph).
I have four of the brown tumblers - none of which is marked........... six of the clear sort with three marked............. and six of the uranium type all of which are marked, and all those which are marked, have an identical T/Webb backstamp - the sort we usually refer to as 1935 - 49 (Dodsworth). Since two out of three are from the same factory, I had also connected the brown one on the basis of similarity - however, this may be too much assumption - it's quite possible that many pre-war tumblers had this sort of look.
It's perhaps significant that all of the clear and uranium glasses (the known T/Webb pieces), are thinner than the brown ones - they also have a good ring, and appear to be of a higher quality glass than the others - although it might be just the thickness making the difference.
It does seem that genuine T/Webb Ribbonette (with a backstamp) is very thin on the ground, despite having been in production for some years, and it will be interesting to see if any other pieces surface showing eight points, but at least we do now have a marked one for reference.
quote................"I remain to be convinced until one of these surfaces with a backstamp.".......... bit of a wooly comment, so just to clarify....... I was referring to the blue pieces with the pointy pattern, shown in this thread, which the museum are now suggesting are Stuart....... I need to see one of these pointy patterned pieces with a Stuart backstamp (especially as the museum reckon they come from the 1930's) - blue or othewise - to be convinced they are from that factory.
I also now don't think that all these tankards and jugs etc., with this type of Ribbonette pattern, are from T/Webb (for one reason I'm sure Webb didn't do this blue) - but just have a feeling that with so many coming to light there'd be at least the odd example with a T/Webb backstamp, so Bernard may well be correct in thinking of a Continental origin.
