first thoughts were T/Webb's Gay Glass amber sunshine, but according to the books amber sunshine (uranium) appears not to have been offered in this pattern. However, having now looked again in Hajdamach's 'C20 Glass', this surface decoration seems to be very like 'Fir Cone' -see page 54 plate 102. Obviously, unmarked, and I've not seen the pattern on any Webb's before. Good quality pontil depression, plenty of wear, and a good long ring. Age wise I'd suggest pre 1940. Height is about 6.3/8" (165mm).
Do people know if this pattern is T/Webb definitely, or am I stretching the imagination - thanks for looking.