Some more photos of the six-pointed patternm as promised. A turquoise water glass and the "auburn" pint tankard. The third one was taken with flash.
Just one small pedantry.
In '"Art, Feat and Mystery", The story of Thomas Webb & Sons, Glassmakers', by H W Woodward [Keeper of Glass and Fine Arts for Dudley County Borough] the author mentions the Ribonette pattern. I've seen it elsewhere with one b, too.