Hi, can anyone help with an ID on this large lead glass goblet. Has a ribbed stem and foot. The foot rim has a blue glass top edge. Broken pontil beneath. It has a large bell shaped bowl with vertical optic ribbing and a blue swirl pattern around the top.
It's approximately 24.5 cm just over 9 1/2". There's plenty of wear present so it has at least some age.
So far I've only found one reference which attributes a very similar glass to Powell and sons.
Any help appreciated
Keith